Police, Civil Liability and the Law Essay

At the onset of the 20th century, police work can best be described as very authoritative and policemen or law enforcers were themselves considered the law. Criminality was low principally because of the relatively stable economy and the population density in cities and urban centers were a hundred time, or even more, than today. As symbol of authority, the police was then looked up to by the citizenry with great respect and even with admiration. Through the years, the public image of the policeman is suspect. In truth city police departments today already employ spokesmen or public relations officers to ensure the respectability of the service is protected and preserved. The changes in the concept of police work tremendously changed over the last century, or to be more specific the 25 years. The situation was brought about by the growing public conscious on human rights which is guaranteed no less by the United Nations. While before police training was focused on proper handling of firearms and marksmanships, traffic rules and regulations, today’s police officer should be conscious of every person’s human rights. Otherwise he or she may end up in court being sued for civil liability or damages. Changing Concept on the Police Over the years the police service has underwent some sort of an evolution. From a strong image of authority, the police has to some extent been compelled to accept the fact that their functions or source of power emanates from the taxpayers who wanted them to be their protectors instead of oppressors. The situation is quite complex. While they have the mandate to enforce or implement the laws, the police are being restricted by a string of guidelines better known in their lingo as the rules of engagement. They have to comply with the rules in the performance of their duties because failure to do so could mean suspension or worse dismissal from the service. Unlike before when for instance, a traffic police officer can simply issue a citation ticket to a motorist who violated a traffic law today’s system places the supposed violator on a position of strength. He or she can write on the citation ticket the words â€Å"under protest† to signify the intention to question the actuation of the traffic officer for flagging him or her for a supposed violation. The situation for policemen whose duties are to run after criminal elements or members of the underworld is even more difficult. Unlike before when they would simply pick up a suspected person and have him or her placed under interrogation or â€Å"tactical questioning,† today’s detective or police intelligence officer need to first gather substantial proofs or incontrovertible eyewitness accounts in order to be able to apply for a warrant of arrest from the court. Down for a supposed violation Because of the complex nature in today’s justice system, police work now requires them to be conscious of the civil or human rights of every citizen. Additionally, they also need to be more aware of the rules of court or run the risk of being rebuffed or they cases they brought up for prosecution or litigation may end up dismissed for either insufficiency of evidence or non-compliance to the rules in effecting or carrying out arrests and raids. The preponderance of diligence in the performances of police duties and responsibilities in the enforcement of the laws is so emphasized that police officers are restricted from conducting investigations or questioning without the presence of the suspect’s preferred or lawyer of his or her choice. Civil Liability of Abusive Members of the Police Department Today’s police officers are made by law liable for their actuations as a result of an alarming pattern of abuse they commit in the process of dispensing their duties. Perhaps because of media attention or coverage on police work, abuses have eventually been documented or difficult to deny as far as the police officer is concern. Every now and then, the public would see on television brutal police handling of suspected offenders. The abuses have become so frequent that the time has now come where victims of police abuse have to get back at them by suing for civil liability or damages. Perhaps, as society experiences new trends in law enforcement more laws to ensure that the power or authority vested in police officers are only used for the public good and not make the police as a threat to society itself. By making them civilly liable for high handedness in the performance of the laws, police officers will be kept on their toes. Guide to Civil Liability In view of the above positions, it is notable to discuss a book manual for police officers’ to consider in the performances of their duties and in relation to their civil liability and the law. In a book entitled â€Å"The Police Officer’s Guide to Civil Liability,† Franklin (1993) emphasized the need for law enforcers, police officers in particular, to adhere to a standard guide to enable them to abide by their principles and at the same time uphold the concept of civil liability. Franklin noted that due to the increased number of court cases hurled against police officers, there is also a mounting need to teach these law enforcers on the dynamics of civil law. This is because such training or learning should be innate among police officers and within their profession and in order for them to survive the field (Franklin, 1993). While the required knowledge on civil liability totally varies from their abilities and expertise which are essential to be alive in a fatal shooting incident, having proficiency about civil law may avert a devastating possibility or outcome which will ultimate affect the career of the police officer and which is definitely dreadful as any form of shoot-out or gun battle. Additionally, the monetary and emotional implications of a civil case are often than not surpass the physical suffering which is likened to a gun shot wound (Franklin, 1993). The book noted that as professionals, police officers are, in one way or the other, are engaged in a civil case. Franklin noted the stress it had inflicted on law enforcers and their respective police departments in general. However, police officers are still limited with civil law or civil liability trainings which may assist them in their court battles. It is unfortunate to note that a large amount of money which will be used in the court proceedings as well as many lives of police officers could be saved if only there is a provision of civil liability education or training. This is because such kind of knowledge created a better and well-prepared police officer who can react to any kind of police situation or effectively carry out his duties to people and the society. Through this training, there will also be a reduction in the possibilities of a defeat in the civil case, and most importantly, this is the fundamental determining factor for the efficiency and value of police officer and his civil liability training (Franklin, 1993). Conclusion An increased awareness on the need for police officers to learn and adhere to civil liability in reference to specific laws of the country is a positive effort to undertake. This is because such consciousness will allow police officers to carry out their obligations, in a legal or appropriate manner, without the hindrance of possible civil lawsuit. While there are members of the police force who are undeniably amiss in their profession, it is worthy to consider that this is not the general view of the police department. Additionally, any misconception about the police profession may be corrected in such a way that the police officers are portrayed as important members of the society who are bound to protect people, property and the society as a whole. Hence, it is just but fair to provide police officers trainings and related means which will enable them to appropriately respond to the security or safety requirements of the people. Ultimately, the concept and the need to uphold civil liability will serve as a reminder for police officers that their authority entails responsibility.

The Ability of Yeast to Ferment Sugar Molecules

All cells need to have a constant energy supply. The two processes by which this energy is attained from photosynthetic materials to form ATP are cellular respiration and fermentation. (Hyde,2012). Fermentation is a way of harvesting chemical energy that does not require oxygen. (Reece et al. 2012). When the body is deprived of oxygen it will then begin to meet its energy needs through the slow process of fermentation. In our lab we investigated alcoholic fermentation by using yeast, which can flourish in an low energy environment in anaerobic conditions.In this lab our goal was to discover the rate at which yeast will ferment different sized molecules of carbohydrates. In order to perform our experiment we made use of water, glucose, sucrose, and starch. It was hypothesized that glucose, sucrose, then starch would all be used to produce energy during fermentation. Being that glucose is a simple sugar, or monosaccharide, we predicted that glucose would be fermented most quickly. This hypothesis was made based on the idea that glucose is the cell's main source of energy in aerobic cellular respiration. The first step of cellular respiration is glycolysis which breaks down glucose for energy.We predicted that Sucrose would ferment second to glucose since it is a larger molecule composed of glucose and fructose. Finally, we predicted that starch would ferment extremely slow behind all of the other carbohydrates. METHODS AND MATERIALS: On October 31, 2012 in the lab of Greenfield Community College my lab partners, Madeline Hawes, Timothy Walsh and I conducted the following experiment in order to test the effectiveness of yeasts' ability to ferment different carbohydrates. We first filled 6 small flasks with 75 ml of water and 5 drops of phenol red to each flask.Four of these were labeled with the solution that would feed into them and the other two with â€Å"control† and the last with â€Å"increased CO2. † The color of phenol red is orangish-pink wh en there is a neutral pH present. As carbon dioxide is released into this solution from the release of the gas from the yeast filled flasks, the solution turns a light yellow indicating a weak acid. We measured out four weigh boats of 2 grams each of starch and then added 2 grams to each of 4 labeled flasks of 50 ml water, 50 ml Glucose solution, 50 ml Sucrose solution, and 50 ml Starch solution respectively.All of these had been stored in incubators to maintain an optimal temperature of 35 degrees celsius. We put these flasks into our sink which we made into a water bath. We then drained and added hot plate warmed water from a 1000 ml beaker we kept heated in order to maintain the optimal temperature of 35 degrees celsius around the flasks. We swirled the large flasks to mix the solutions and yeast as they sat in the water bath. The flasks containing the yeasts solutions were then stoppered with glass straws and tubings and their extending tubes placed into the matching labeled sma ller flasks adjacent to the sink.I blew through a straw into the flask labeled â€Å"increased CO2. † The phenol red detected the presence of CO2 turning the solution yellow. The â€Å"control† flask was left as a comparison for the remaining yeast filled tubes feeding into the other flasks of phenol red and water. RESULTS: We recorded our first observations at 10 minutes. Just as we hypothesized, the yeast and water experienced no change. In the glucose solution flask, the glucose molecules were being quickly broken down and forming a frothy head, sending a bubble of CO2 through the tube every 2 seconds while turning the phenol red to a light orange.The sucrose solution was bubbling every three seconds and also had turned light orange. At 10 minutes there was no reaction in the Starch solution. The latter data remained consistent with our hypotheses. The glucose solution at 20 minutes was very frothy and bubbly and had turned the phenol red a very light yellow with a consistent bubble through the tube every second indicating a strong presence of CO2. The sucrose, too, had turned light yellow and had continuous bubbles every 2 seconds. The starch had a rare bubble with no noticeable change in the phenol red solution.At the final check in of 40 minutes both the glucose and sucrose had fermented most of the yeast and slowed down on bubbling. The glucose still had the most bubbles occuring. The starch was a lighter pink with little change in the levels of froth in the yeast solution. The water solution still remained completely unchanged. DISCUSSION: Our hypotheses were supported through illustrating that all forms of sugar do provide energy and that glucose, being the smallest molecule, was the most efficient. The control tube contained no sugar and therefore produced no energy. A source of sugar is necessary for glycolysis and fermentation to occur.The strongest presence of carbon dioxide was in glucose, indicated by the bubbles which are a by-pro duct of ethanol fermentation. The rate of fermentation in sucrose was second to glucose and Starch was the least effective at providing a sugar to create energy. The large polysaccharide was difficult for yeast to break down to create the necessary energy that would produce carbon dioxide. Glucose is the most efficient sugar as it is a small monosaccharide which is already the source of energy for the Glycolysis cycle. The largest possible source of error in our experiment is the time in which each solution began its fermentation process.We added the yeast into each flask containing the sugar solutions at staggered times. If this experiment were to be repeated it would be more precise to have four people pour in the yeast and swirl at the exact same time and then stopper the solutions. The only minor inconsistency would be the amount of yeast that was spilled or left in the weigh boats. This could create a discrepancy in the final results. Through this lab I understoodd that in time s of oxygen deprivation the body can still function through the process of fermentation.The yield of 2 ATP molecules is enough to keep muscles contracting for a short period of time when oxygen is scarce. Through the fermentation process NAD+ is regenerated as pyruvate is broken down to CO2 and ethanol. This allows the anaerobic production of 2 ATP molecules. (Reece et al. 2012). In essence, keeping cells alive that may otherwise die without the energy to provide for muscle contractions of the heart.LITERATURE CITED: Reece, Taylor, Simon, Dickey, and Campbell. , Biology: concepts & connections. Pearson Benjamin Cummings, San Francisco, CA. Pgs. 100-101 Hyde, A. October 31, 2012

Antigone Study Guide

Antigone Study Guide 1) Antigone – Daughter of Oedipus, very forward, she goes out to bury her brother even though it was breaking the law of King Creon and gets caught for it and killed, also betrothed to Haemon. Ismene – Another daughter of Oedipus, timid, doesn’t want to disobey Creon. Ismene gets up to speak her mind for her sister when Antigone is faced with the crime of moving their brother body. King Creon – Brother of Jocasta (whom committed suicide. ) Was a captain/general of army and the next ruler of Thebes, very righteous, wants to be obeyed by everyone or results in death for them. Haemon – Son of Creon, betrothed to Antigone, and has a romantic relationship with her. Haemon get very angry when he finds out about the loss of his bride and then kills himself and dies holding her dead body. Tiresias – A seer, comes to Creon and tells him that he needs to release Antigone or more people will die and he will be in a very sorrowful position, Creon doesn’t head his words in enough time and ends up in despair. Eurydice – Wife of Creon; kills herself with a sharp dagger to the heart when she finds out about the death of her son Haemon. A Sentinel – Just informs Creon of happenings around Thebes; and helps him to find Antigone when they are looking for the law breaker. 2) The dramatic effect to show how all of the rest of their family have horribly perished by murder or their own hands, kind of foreshadowing what will happen to these last two children. Ismene’s view of the difference between men and women is that women are born women they aren’t meant to rule they are to be below men, and to be obedient. 3) She will lay with him for as long as needed no matter what. â€Å"The powers of earth will not be as good as the powers of the Gods. She willingly to do anything for her dead brother to bury him, â€Å"do holy things criminally,† is an oxymoron because holy is meant be good and righteous but doing it criminally which is a ‘conflict of values’ between good, holy and bad, criminal. 4) There is a law set by Creon not to bury or touch the body of Antigone’s dead brothe r, but Antigone wants to bury him no matter at what cost. People today want things that are illegal for them to do, for example, when a divorced parent kidnaps their own child from the custodial parent, law says it’s not their child but they do anything for their child they love. ) The Chorus is a group of Thesbian Senators; the use of emotion pulled the reader into the writing and the amazing flow with writing rhyming and tempo made it easy to get more absorbed in the passage, feeling how people listening to this play would feel. 6) He is apologetic for all the trouble people had while they were ruled by Oedipus, uses the comparison to a ship and stormy seas again, tells them they can get a secure footing now. He says that death awaits anyone that goes against him or touches that body. Their beliefs are similar because they are both out for love of something and are not letting anyone get in their way. ) The 1 Senator, suggested, â€Å"This must be something more than natur al,† as to say that it could be something out of the ordinary and abstract. We see that the body is sprinkled with a dust given a ritual then buried, and that disappearing bodies was just crazy. 8) He is describing sin and temptation when he says that it ruins cities, removes/runs men out from their families and homes, leads them on the wrong path, and sets humans on not righteous actions the gods want but just what a human wants and their instincts. 9) He acts a little amazed, then asks her if she will admit to it or not. He questions her without much other conversation and with the answers Antigone gives, Creon gets more angry seeing that she sees him as not high enough rank, and that she will only listen to laws made by the gods, and Creon does not want to be ordered around by a women. 10) I feel that Antigone choice was a foolish religious zealotry. There were laws set by her ruler and she disobeyed them because she felt like only laws created by gods truly mattered, and that disobeying a ruler would have no effect or punishment for her with anyone but Creon. 1) Ismene wants to die with her sister, she does not want to watch her sister die then have to live without her. Even though she was timid and didn’t actually breath the law and touch the body or be involved in its transportation. She tells Creon she was involved and become defiant and stiff wanting what she wants. 12) They tell how the history of family continues down the whole line and one mistake will ruin their heirs forever. They a lso say how much wrong Antigone’s family has created and all after them of their children will be damned as well. The sickle murderous, of the rulers of the dead, and the wild words beyond control, and the frenzy of her own soul, again mow down the shoot. † Explains of what all her family had done and that it needs to end. 13) Haemon goes from simply agreeing with his father to questioning Ceron’s right to do this to his betrothed. Then the two start to quarrel over Creon believing Haemon is following a women rather than him, when he is really just bringing up logical questions. Haemon is just trying to prove that it wasn’t trying to go against Creon’s law when she took her brother, but was just looking out for him because she loved her brother. 14) He changes it so that the blood of her death cannot be traced back to anyone, when she dies alone in a cave with some food provisions. Also to symbolizes that the dead should not be disturbed to be buried like she attempted to do with her brother, and to prove that she is, â€Å"A lost labour to revere the dead. † 15) We see a sad side of Antigone, were she says it will be her last time seeing light and she never had a wedding or a wedding song. The chorus kind of says, ‘be happy, don’t be sad, you did not go to the grave with a plague, or stabbed with a sword, you’re going to the grave alive! ’ 16) When Creon sees Tiresias, Tiresias asks him if he will follow what he says, Creon says he always does, but Tiresias start to scare Creon when he starts to speak. That adds to the dramatic effect, wanting to know what Tiresias will say. He says that it was right to bury the body and that no one should be punished for it. Also that if she isn’t released there will be more deaths then just Antigone’s. 7) Initially Creon is surprised and does not want to do what Tiresias is suggesting. It follows his character and his not wanted to be wrong and his want for power. Creon learns that the laws of the gods are more important than his own, even though he doesn’t want to accept it. 18) Creon went to check for the voice of his son Haemon in the cave before opening the cave, to release Antigone . Doing so caused the deaths of, Haemon, Polynices, and Antigone. If Creon had saved Antigone first it would have most likely saved Haemon when he saw his betrothed. Doing what Creon did proves how much his pride comes before anyone else. 19) Antigone – Hung herself with linen rope in the grave where she was left to die. Haemon – Stabbed himself through the chest with a sword after seeing Antigone’s dead body and holding her in his arms. Eurydice – Dead at the altar of Creon’s house, slain dead with a sharp edged dagger to her hear with her own hands. Polynices – Found dead at the top of a hill, on the hillside with wild dogs all around him taking their shares. 20) Creon learns that by condemning others he condemned his family and they ll tragically saw their fate because he couldn’t let Antigone burry her brother, that many more people close to Creon died. 21) Antigone is a ‘Tragic Figure’ because she dies in the story and makes the audience feel bad for her because she was punished severely for trying to do right by her brother and bury him. While King Creon is the true ‘Tragic Hero’ because he sees his wrong after pride and power set him off course and down the wrong path, and after he saw the light, it was too late to fix what had already begun, and many more people died when no one had to suffer or die at all.

Harmonic Motion-Elastic spring Lab Report Example | Topics and Well Written Essays - 250 words

Harmonic Motion-Elastic spring - Lab Report Example The plot resulted in a straight line that was used to determine the elastic constant of the spring and its accuracy based on the slope. In this harmonic motion experiment, the spring oscillated up and down with amplitude and a time period measured as t. The theory underlying the phenomenon being studied here was that of Hooke’s law for an elastic spring (Wilson & Hall, 2009). In setting up the experiment, a spring, set of weights, a stand and timing mechanism were used. In releasing the weights, and starting the oscillations, an electromagnet was used. The procedure was to connect the weight to the spring and power the electromagnetic with the metal weight sticking to the electromagnet, and when the button is released, oscillations started. The hypothesis was that there is a dependence period in the mass of the oscillator. This is proven given that, with the addition of extra mass, the time increased from 8 in the first experiment to 12 in the last experiment. Averagely the time increase from 0.76 to 1.2 in the last experiment. This proves the null hypothesis that time period is dependent on the mass of

Info Analysis - Computer Information System Article

Info Analysis - Computer Information System - Article Example The organization might want to automate this business process. In this case, the other businesses could be having the same hardware and software but they lack the business process. This way, they will not get the competitive advantage of the business first, then the competitive advantage of using information technology in undertaking the business process. The use of information technology is different as the process that is to be automated could still be undertaken by human beings. It will depend on the culture of the organization regarding the human resource. The gains that are sought in using information technology will depend largely on the competitive nature of the organization. I do not agree with the comparison as all organizations could be having the same hardware but they lack the competitive nature that comes from employing the use of these technologies. Information technology investment will depend on the business processes that are available and the strategies that various companies have towards the use of information technology. Even now, nearly all organizations have the same hardware and software but there are those organizations that have made use of information technology than others. This is because it depends on the investment on information technology and the strategies used. ... , although this one of the reasons, but because of the new opportunities and the research that they undertook in this field of information technology. Competitive advantage is gained when we make use of information technology and ensure that there is enough research to understand what will be gained and lost. Information technology risks are analyzed when new information systems are obtained. There is no need to focus on this aspect so much such that the function and the core reason for investing in the technology are forgotten. Risk management is part of the management of information systems. Once information systems have been installed in place, there will be management of these information systems. Risk management is another function that will come after the information system has been installed. It is, therefore, the role of the information managers of the information systems to constantly review the information system for errors and potential risks that might be experienced. Whe n taking this stand, I understand that there is no technology that does not come with risks. If risk management would be the main focus of companies and organizations, then the current status of technology could not have been attained. T is important to understand this important fact. Effort should be put in new opportunities. This is the main area of focus. Question 3 Duke Nukem is a game that was developed in the 1990s. The game was losing popularity. There were more advanced games which were being developed. These new games had features which were better than those of Duke Nukem. There were better features and improvement of computer features. With the development of these features, there were games which took advantage and were fun to play. For this reason, the popularity of Nuke Dukem

Greek Theater Research Paper Example | Topics and Well Written Essays - 750 words

Greek Theater - Research Paper Example However, performance of the plays began in the city of Athens during a religious festival of Dionysus, perceived to be the patron god of theatre and agriculture, peace promoter and the god of wine and harvest (Thomopoulous, p56). The actors would perform the plays within the first two weeks in the month of March in every year. An Archon would arrange, run and manage the activities of the festivals. He was an official whose election was at the end of every festival in every year. The Archon would perform his duties of managing the festivals only once (Rieger, p70). The new Archon would start immediate preparations for the next year’s festivals immediately after their election. He also appointed the playwrights who would present during the festivals and the judges, who would determine the winner. He selected two sets for the plays supposed to be staged during the festivals, one of tragedy and one for comedy (Nobles, p56). The theatre of Dionysus, located near the Acropolis, was one of the first theatrical structures where actors presented their plays. The Acropolis was a major structure in the city of Athens. The theatre, which resembles a baseball stadium in the modern day, comprised of three parts, the orchestra, a large circular space and buildings behind it. The other part was the skene, which in modern days is â€Å"scenery†. These were the buildings behind the orchestra, whose painting portrayed the play’s settings. They also held a backstage area where actors would rest in between the scenes and change their costumes. Then the third part was the audience who surrounded the stage on three sides (Porter, p56). A grand processional into the theatre of Dionysus kicked off the festivals, where people carried baskets of bread and jugs of wine and water as they entered in. They would offer the foodstuffs as a sacrifice to Dionysus (Porter, p95). Various groups of choirs performed songs, Dithyrambs right after the processional. These were song s accompanied by flutes and archived Dionysus’ life, particularly focusing on a single instance and were only performed by boys and men. The audience spent the remaining evening hours dancing and singing and in the following day, playwrights would announce the titles of their works to the audience. Performance of these works would take place in three days (Rieger, p75). A cycle of three plays formed the tragedies, where audience spent the whole day watching the entire cycle, which in many occasions ended in a burlesque and open sexual play known as a satyr. The characters in this play consisted of Greek myths and in addition, the playwrights from the previous tragedies, who would then engage in different kinds of immorality. There was performance of five comedies on the sixth day of the festival (Nobles, p67). Although people perceived these comedies as less complicated, it was still honorable for the best comedy to win. Judges would determine the winner at the end of the fes tival, whom they would award with a trophy and festoons. The greatest prize from the competition was however a goat, where the winner had an opportunity of giving it as a sacrifice to Dionysus. Aeschylus won many times the prize for the best tragedy than any other person. Unlike today’s plays where actors speak, the actors in the Greek plays would sing. These plays consisted of about four to thirty people who stood at the back of the orchestra.

How are women represented in Things Fall Apart Research Paper

How are women represented in Things Fall Apart - Research Paper Example African women are merely sex toys in the hands of African men. Each African male has the authority to select as much as wives he needs. On the other hand such liberties are not given to the female community. â€Å"Chinua Achebe shows women as having little to no power in society in his book, Things Fall Apart. Women are not only without protection, but also denied social status. They cannot meaningfully participate in social affairs† (Kramer). This paper analyses the women representations in Things Fall Apart. â€Å"In Igbo culture, women are considered weaker than the men and thus it’s an insult to men to be called an agbala (Agbala represents a person with no titles). Okonkwo is acutely aware of what it means to be a man in the Igbo tribe and is ashamed that someone might call him or his male relations agbala† (Things Fall Apart Gender Quotes). Okonkwo, the main male character in Things Fall Apart treated his wife as a servant. Because of his short temper and aggressive nature, his wife led a miserable life under fear. Okonkwo never allowed his wife to ask questions to him about any matters, including personal, social or family. Weak men in Ibo culture were insulted by others by calling them as women. For example, Okonkwo considered his father as a woman because of his laziness and carelessness. In a meeting which included so many other dignitaries, Okonkwo asked his father to leave the meeting saying; "This meeting is for men" (Achebe, p.28). The above fact clearly underl ines how severely Ibo women were humiliated by their male counterparts. â€Å"In fact, women count for so little in Igbo society that they are often not even addressed by their given names, but referred to by their relationship with men† (Things Fall Apart Gender Quotes). Women in Ibo society were treated as the second class citizens. Unlike other women in other parts of the world, Ibo women were not respected much in

Operations and IT Management Essay Example | Topics and Well Written Essays - 500 words - 1

Operations and IT Management - Essay Example it is a well organized company with various departments each specializing in executing a function of importance to the overall objective of the company. My tour started with the reception, production department, design and planning section, marketing section, accounts and dispatch section (Young, 2009, p. 14). I also visited the workflow section to learn about the various processes which the balloons go through before it is packaged for sale. Here I learned the various stages in the workflow and how each contributes towards the manufacture of the balloon (Wah, 2004, p. 15). The main lesson learnt was that Cameron virtual factory is one unique factory involved in the manufacture and export of high quality hot air balloons. This product is exported worldwide to various countries and is used to provide an alternative aircraft for use in the sky. The company is divided into departments of which each handling its own task contributing to the final product which is a finished hot air balloon (Wah, 2004, p. 05). The main objective of all these tasked is to satisfy the customer and meet his or her specifications without compromising quality of the company products (Young, 2009, p. 27). The manufacture of the balloon commences with a specification being provided by the customer. This idea with specifications is presented before the designers and sales team who analyses it (Wah, 2004, p. 08). The designers and sales team would work together to come up with a visual representation of how the balloon will look. This is a schematic diagram that is then analyzed further to achieve the final product before commencing the construction process which would take lesser duration comparatively (Young, 2009, p. 24). The drawing is presented to the customer who will approve or disapprove the same. If the customer approves the drawing or rather artwork the sales department will generate a quotation for the work after which the customer will be requested to make initial deposit for the

Whether or not euthanasia should be allowed in the USA Research Paper

Whether or not euthanasia should be allowed in the USA - Research Paper Example In case of legalization of Euthanasia, the act should be legalized because a major chunk of the population is supporting it and the support is increasing. PEW research reports that within a period of eight years the support for legalization of euthanasia has increased from 47% to 49% (PEW 1). Euthanasia should be allowed in United States because it is an ethically correct decision. According to the ethical decision making system of utilitarianism, only those acts and decisions are correct that result in the heights amount of happiness of the society (Su 65). Euthanasia relieves the patient as well as their family members from severe emotional and physical pain and helps in solving their financial issues. Therefore, euthanasia is an ethical act and should be allowed. Euthanasia is mainly administered to patients who are suffering from a deadly disease such as cancer. Due to this the patient and his family members experience ample amount of stress emotionally, financially as well as physically. According to Farina, per patient per year cost of cancer management ranges around $60K to $90K. Euthanasia is a way to end all these sufferings of the patient and other stake holders. Euthanasia should be allowed in United States as the major percentage of the population is US support it and the support is increasing. It should be allowed because it is ethically correct under the light of utilitarian code of ethics. Allowing euthanasia in US will decrease the emotional, physical and financial burden of the patient and other

Persuasive letter Essay Example | Topics and Well Written Essays - 500 words

Persuasive letter - Essay Example As well, our budget does not allow for the kind of production that you have presented and so we have therefore decided to go with a different option. Please feel free to resubmit with us again for next year’s event. We found your ideas interesting and if you provide a stronger application with more research prior to the presentation, we would love to consider using your ideas. As well as the research considering city codes and policies, we would like to see more thoroughly organized plans for building the production so that we are reassured that you can provide the production that you are promising. While we loved the illustrations and the ideas, we were unclear as to how the construction was going to be accomplished. While budget is our main concern, we were also concerned that the process that would give us the production had not been fully considered. We would love to see a similar presentation that has been modified to fit within our budget and that has been completed with engineered plans and potential problems with the city researched. Once again, while this year we have chosen to use another company, we were impressed with your presentation and look forward to seeing you participate next year. We were very interested in your ideas. While we have gone a different way, we find that the production you have offered can provide a potential benefit for our marketing purposes should you be able to provide a more thoroughly researched project that satisfies the issues that can arise from such an undertaking. I want to thank you for the meeting we had on Thursday. The presentation that you gave was creative and offered many wonderful ideas. Unfortunately, we will be unable to use your company at this time. The ideas that you presented were innovative and creative, however we are unsure that the city will allow for balloons of that size to occupy the space of the street. As you were unable to provide us with information on the policies of the

Monism Philosophy Research Paper Example | Topics and Well Written Essays - 1500 words

Monism Philosophy - Research Paper Example It follows the main formula which depends on the target and the unit. Monism is the opposing concept of pluralisms and nihilisms, because these concepts are focused on the importance of plurality in the nature of things (Scaffer â€Å"Monism†). The objective of the paper is to present a perspective on materialistic monism, one of the main types of the concept. Due to the numerous types of monism, one can surmise that any individual can have one of his or her own but the pressing question is which one is the most applicable to be used and to be prioritized. Materialistic monism is the feasible paradigm that can justify the interrelatedness of entities in nature. Supporting Evidences of Monism There are different concepts in the historical and contemporary knowledge that can be used to support the connection between natural phenomena and materialistic monism. One of the main evidences in that of the biological realism specifically the manner by which the brain works. The human b ody is one of the examples of entity in nature. Monism explores the manner by which different entities exist as one. It can be translated that the different matters are composed of similar units. The human body as that of nature is composed of units that can be considered related to every other component of matters and entities in nature. ... In this scenario, it is needed to be pointed out that the process of the mind cannot be separated from that of the brain, thus, the functions of the organ can be perceived in the holistic sense (Fingelkurts, Fingelkurts & Neves 264-68). Another evidence in relation to monism is related to the blobject, which is a concept related to the oneness of the matters in the universe. It defines the concept of materialistic monism (Scaffer â€Å"Monism†). Materialistic monism had been defined as God and nature. It is the law of substance as presented by William James (Worthen, Ellis & Kinkead-Weekes 179). Based on Spinoza’s work entitled Ethics – â€Å"Except God, no substance can be or be conceived† – which means that the entities in nature just transform through reorganization of components and not made. In addition, at a particular point, the components cannot be divided anymore but can only be defined as part of a whole (Bachli & Petrus 65). These concept s can be considered as the main evidences in the thesis of the interrelatedness of entities in nature, both living and non-living matters. According to the basic view in environmental science by Earnst Haeckel, he advocated the monism in nature which was defined as the unity in the mind and body. The main examples are the living matter and their basic components which if analyzed are also similar as that of the non-living things in the surroundings. Basically, the main point of the proposition regarding monism is the fact that every natural occurrence can be attributed to and be supported by the principle of monism. Even the transfer of energy from one matter to another reflects the interrelatedness of entities

Evacuation was a great success Essay Example for Free

Evacuation was a great success Essay Source A is a picture of all the happy school children all lining up to be evacuated. Now this is not a reliable source when trying to prove if evacuation was a success or not. This is due to the fact that during the war the government had emergency powers. This gave them power all over the newspapers. So this meant that the newspapers posted propaganda about how successful the evacuation was. In the picture, there are all smiling faces, and no signs of a resistance. It almost looks like the kids want to be evacuated. This photo has been used to give an overall positive impression of the evacuation. Now in the picture, the kids look happy, but in reality there was a lot of resistance against evacuation. Parents didnt want their kids to leave them, and kids didnt want to leave their parents. In Grimsby, more than seven thousand children were eligible to be evacuated, but on the day only 1,854 children had been evacuated. Showing that there was a reluctance to evacuate children. In the evening telegraph it even described the evacuation as Though some omnipotent pied piper had been thought the cities of England, stripping them of their children. Source B is a teachers recollection of being evacuated with her children from her school. Now this has to be looked at carefully, as it was written a while after in 1988. Now memories could be different. She explains, All you could hear was the feet of the children and a kind of murmur. This shows that the children arent the smiling people as shown in the papers. This shows that they werent really pleased about leaving their homes and families to live with complete strangers. This could also not be reliable because it could be over exaggerated. Source C is an extract from a novel about evacuees. Now before we analyse this we have to take into consideration that this was written for the younger audience. So facts could have been altered to make the story more interesting. First of all, we can rely on this source too highly as it is a fiction piece, which is made up. And also it will not be too graphic as it is intended for the children. Secondly it was written in 1973, nowhere near the time of the war. Source D is an appeal for more people in Scotland to provide homes for evacuee children. Now this source was probably published in a newspaper. Seeing as first looks at it, it looks like propaganda. In the passage, it is trying to get more people to take evacuees in. It does this by saying two of the strongest words ever, thank you. These words are the words that most reach out to the people, as humans like being appreciated. Now after they feel good form the thank you, thats when they appeal to you to get those sweet looking children in the picture. But it wasnt like this. Some of the children contained lice, and some had never had a bath in their lives. Some of them were under clothed, some had came in all the clothes they had. These mislead people thinking that they would get a nice quiet child, clean and happy. Instead they got unhappy crying children, suffering from chronic bedwetting. Source E is an Interview with a parent in may 1940. Now 1940 was the beginning of the bombing of the cities began. And during the text, you can see that he was reluctant to evacuate his child, and kept him with him in the end. As you can see from the way he speaks, he has a lack of knowledge and therefore is scared of the unknown; he has no concept of what it would be like to live in the shires. You can tell that he knows if the kid goes away, he knows that the dad dies, and the kid will come back to no family what so ever. This is a useful source because it gives us an idea of what the parents thought about the evacuation. I agree with the fact that the evacuation was a success. It kept the children safe, but the Evacuation failed in keeping the children mentally safe. Most parents who preferred to keep their children with them instinctively realised what was not known: That sending off young children could have serious repercussions.

Reflective Writing And Theories Of Reflection Education Essay

Reflective Writing And Theories Of Reflection Education Essay There are several types of reflection. As mentioned by Taylor, All types of reflection are important and a combination of these may be used to make sense of practise and to bring changes. Technical Reflection is generally used to look at clinical practices and procedures along with the scientific knowledge. However, values play no part in this. Practical Reflection on the other hand judges human experiences and assumptions. It also develops common values in-line with organizational values. Emancipatory (Critical) Reflection involves critiques of the assumptions on which our social, political and cultural beliefs are based with the prospect of changing them. Reflective Practice is concept developed by Donald Schon. There are also several models of reflection used to draw lessons out of experiences. In 1978 Argyris and Schon established the idea of single loop and double loop learning. In the former concept the organization or the individual follows the current techniques or strategies even after corrections are made to the current errors. However, the late concept involves modification of techniques and strategies. Later in 1984 Schon coined the concepts of Reflection in Action (RIA) and Reflection on Action (ROA). RIA is a concept when the practitioner is faced with an issue he makes a decision based on his feeling and prior experiences. On the other hand, Reflection on Action is an idea where the practitioner analyzes the experience after it is over. Personally, I have experienced both the concepts during several situations in life knowingly or unknowingly. Specially, during our ALE1, we were given an opportunity to reflect on ou r performance after every task. This depicted our practical implementation of Reflection on Action. By implementing the learning from previous task in the later task we have also exercised the concept of Reflection in Action. To mention an example, in the first task we were given a sheet of instructions which were tricky. However, we went to perform the task without analysing the rules and we failed to finish the task within the given time. After the reflection session, when we went on to perform the second task, we made it a point to read and understand the rules carefully. Kolbs Experiential Learning Cycle is another great contribution to this concept. This learning cycle has four stages (Concrete Experience, Reflective, Abstract Conceptualization and Active Experimentation Observation) and the reflection takes place after the situation has occurred. In the first stage the practitioner concentrates on something that they have done and later reflects and explores the new ideas to better perform the task. In the third stage he forms new ideas and experiments them in the fourth stage. This loop is continued from one task to another. is another process where the practitioner not only describes the situation but analyses it. Unlike the other models it also has an action plan stage where the reflector mentions the actions that he would like to change if the same situation occurs. Jhons model of Reflection on the other hand involves sharing the experiences with a colleague. It has two stages Looking in on ones thoughts and emotions and Looking Out at the situation experienced. Reflection on my Personal Development : Initially, when we were given learning logs for our ALE, I didnt know the importance and advantages of it unless we started writing the reflective log after every task. After learning that this is one of the best and easy ways to change oneself, I have stated using the reflective writing tool every time I wanted to develop the way I work and think. During our ALE we have used several tools to better understand ourselves. During our feedback session, we were asked to use Johari Window to know our intern-personal relationships and communication. Though I was happy about the adjectives mentioned in the public session, the adjectives mentioned in the Blind Spots section were quite surprising to me. The blind spots for me were complex and proud. When I tried to find the reasons from my colleagues for the same, I was told that though I am a friendly, work-oriented person, I sometimes get too much into detail in a group task or assignment and its difficult for them to understand me. This may be because though I am clear about the topic, I sometimes find it difficult to explain which confuses the other people. Also, the feedback I generally receive from most of the people after few days of being with me is that I thought that you are a very proud person when I initially met you. The reason for this is, when I meet new people or enter a new environment, I take some time to get acquainted and unless I know them, I dont initiate a conversation with people. Though this perception of them changes at a later stage, it gives a negative vibe to people in the initial stage. Also, according to Belbin Self-Perception Inventory, the team roles I have similarity towards are completer and specialist. These two roles reflect my working style rightly. I always try to learn more and specialize in the subject area of my interest. Also, because I am good at analysing and pay a good attention to details, I am always given the responsibility of doing the last minute polishing and editing in our group assignments. However, there are also negative sides to these team roles which I am aware of and are part of my development plan. As a specialist though I learn in-depth about the subject of my interest, I neglect other subjects which I am not interested in. Also, the blind spot complex that I have mentioned earlier can be related to the weakness of the completer. As a completer thought I try to get the every detail of the report correct, I sometimes take the perfectionism to the extremes. According to Honey and Mumfords Learning Styles, I am a Reflector. As a reflector I like to learn from activities that let me think, watch and review. However, I find is difficult to concentrate on a lecture unless I find it interesting. This can be linked to my weakness as a Specialist. According to the MBTI my personality type is ISFP (Introversion, Sensing, Feeling, and Perceiving). This shows that I am a peoples person who is friendly and dislike conflicts. But, I like to have my own space. The MBTI and IDAP grid show me on the People Caring part of the grid. This is little contradicting. Though I am comfortable working in a team, I prefer to work on my own. I find it difficult to convey a message as I feel that contradicting with others views may create problems personally. As part of the self-development, I would like to develop a skill to converse a message in a soft way and would like to learn to maintain a professional relationship with other people in team as most of the work in organization is team based. Also, would like to develop my networking skills. Reflection on my managerial skills: According to Reynolds Reflection is a management tool for problem solving. Also, the following quote depicts the importance of management in an organization. Make your top managers rich and they will make you rich. Robert H. Johnson A question that many people ask is why we should we study management theories? Personal traits, values, beliefs and attitudes are the core personal competencies which may enhance or weaken ones ability to manage others. Also, it is the behaviour and talent of the individual that has major influence on the performance of the company. Hence, an understanding of managerial theories is very helpful for someone who aspires to be a manager as most rational decisions are based on theories. An extensive study of the theories available is also very helpful for a manager in order to better manage their team as theories provide info about how to behave and help change the behaviour. Theories also provide a common framework and idea about practices. Over a period of time the purpose of work and the way the work is conducted is changing in the organization. The management styles have to be changed accordingly. Minor says that the more that is known about organization and their methods of operation, the better the chances of dealing effectively with them. Understanding may be more advanced than prediction, but both provide the opportunity to influence or to manage the future. Theory provides a sound basis for action. Hence, an understanding of management theories and knowledge about organization are important for a manager to better perform their tasks. Mullin in his book, Management and Organisational Behaviour has followed a frame work of four main approaches to explain the Management Theory. The Classical Approach which emphasises on the purpose and formal hierarchy of management. The classical writers concentrated on improving the operational efficient in an organization. Brench, a classical writer also provided a concept of practical approach to organization structure based on tried general principles as opposed to the concentration on specific cases. Evaluation: The classical writers are criticised for not taking the personality factors into consideration and for creating an organisation structure in which people exercise a limited control. Also, providing a set of principles to perform management duties has been subjected to criticism. Two Major sub-groups of classical approach are : Scientific Management: This concept was developed by Taylor who was a believer in the Rational-economic needs concept of motivation. The emphasis of this was on obtaining increased productivity from individual workers through the technical structuring of the work and providing monetary incentives as a motivator for higher levels of output. Though this concept has given a way to management thinking and the development of organizational behaviour, it was widely criticised by workers. Bureaucracy: This concept was defined by Weber. He didnt define the concept of Bureaucracy. However, he attempted to identify the characteristics of this type of organizations. He emphasised on the importance of administration based on expertise and discipline. In this concept, the tasks of the organization are allocated as official duties among the various positions. There is an implied clear cut division of labour and a high level of specialization. Evaluation: Over-emphasis on rules and procedures becomes more important in its own right than as a means to the end. Argyris says that bureaucracies restrict the psychological growth of the individual and cause feeling of failure. The growth of bureaucracy has evolved through the increasing size and complexity of organisations and associated demand for effective administration. This theory is founded on a formal, clearly defined and hierarchical structure. However, with rapid changes in the external environment, empowerment and greater attention to meeting the needs of customers, there is an increasing need to organise for flexibility. The Human Relations Approach: While the main emphasis of classic writers was on structure and formal organisation, the emphasis was shifted to social factors at work and the behaviour of employees at work i.e. human relations during the 1920s. The turning point in the development of the human relations movement came with the famous Hawthorne experiment at the Western Electric Company in America. During the experiment a better work environment and a concern for workers complaints has increased the productivity. Evaluation: This theory was also subjected to severe criticism. One of the criticisms is the lack of scientific approach. The Hawthorne experiment was criticised on methodology and on failure of the investigators to take sufficient account of environmental factors. After all the criticisms, the experiment did generate new ideas concerning the importance of work groups and leadership, communications, output restrictions, motivation and job design. Systems Approach: With this theory attention has been focused on the organization as systems with a number of interrelated sub-systems. This approach tries to bring together both classical and human approaches. Attention is focused on the total work organization; inter relationships of structure and range of variables within the organization. This encourages the managers to view the organization as separate parts and as a whole company as part of the large environment. The Contingency Approach: In contrast to both classical and human relations approach, this approach showed renewed concern with the importance of structure as a significant influence on organizational performance. The Contingency Approach that can be seen as the extension of system approach highlights possible means of differentiating among alternative forms of organizational structures and systems of management. This approach implies that organisation theory should not seek to suggest one best way to structure or manage organisations but should provide insights into the situational and contextual factors which influence the management decisions. DUCAMUS Leadership Development was set up by Chris Rigby in June 2007 to plug gaps identified in many leadership development programmes during his research. As part of this Leadership Intervention, they use Downstream 9+1 model to support the critical reflection skills. John adairs action-centred leadership model Generally represented by three overlapping cycles, Adairs three circle model is about balancing and managing Team, Task and Individual. Three core responsibilities in this model are: Achieving the task, Managing the team and Managing individuals. It helps to improve the quality of work, morale and productivity. Theory U is another change management method targeting leadership as process of inner knowing and social innovation developed by Otto Scharmer and originally based on a process known as the U-Process. It offers both theoretical perspective and Practical technology. As a theoretical view, it suggests that the way in which we attend to a situation determines how a situation unfolds. Practically, it provides a set of principles and practices for collectively creating the future that wants to emerge. It involves sensing and presence. There are seven stages in this theory and they are Suspending, Redirecting, Letting Go, Letting Come, Crystallizing, Prototyping and Institutionalizing. Moving down the left-hand side of the U is about opening up and dealing with the resistance of thought, emotion, and will; moving up the right-hand side is about intentionally reintegrating the intelligence of the head, the heart, and the hand in the context of practical applications. An understanding of these theories not only helped me learn how the management theory is formed and changed over a period of time, it also helped me understand the effects of these changes on organizational working styles. Also, an understanding what happened in the past prepares me for changes that may occur in the future. It also gave me an idea about the skills that I need to develop to better manage others. I lack skills like creativity and inter-personal effectiveness which are very important to manage others. Career Development Model Career management involves the matching of individual career plans with organization needs and the implementation of activities to accomplish these joint objectives. Individual Career Development is another constructive model that helps in planning the career through self-analysis. It has several stages such as Life Planning, Career Interests, Goal Planning and Development of abilities and skills. Though I always knew which field I want to get into and what I want to do in future, I never had a logical reason for my selection. This tool has helped me to analyze my interests, strengths and weaknesses and chose a career plan for myself. This development plan consists of several questionnaires about my Career Planning Values, My interests, skills, knowledge and a Priority Grid to prioritize my choices. After analyzing my inputs, I have decided a career of my interest. I always aspired to be a HR practitioner. After analysing my skills, I realized that I like Strategic Orientation and Team Orientation skills that are required to be a HR Practitioner. I will mention a development plan at a later stage along with the action plan that I am going to follow these skills. In a team environment, I can also use this model to know more about my team members career choices. Conclusion: I would like to conclude it by saying that this whole experience of reflective writing was very pleasant and helpful in knowing me with a logical reasoning and my skills. It provided me with a tool that I can use life-long to develop myself. Few of my key learnings from this exercise are : * A better understanding of myself * Understanding of several tools to know myself and people around me * A simple but effective Career Planning Model that I can use to know me and people around me Development Plan Skill | Action Plan | Effective communication | I have already started a lot articles about effective communication skills and started self practicing when I am along. However, in future Il try to speak in public whenever I get a chance. | Adaptability | I will try to be little open and go introduce myself to other people without thinking about what they might think as that is the thought that stops me from talking with strangers. | Inter-personal effectiveness | I have already improved a lot on this skill. However, I am not perfect yet. In future I am planning to take advice from tutors on how to develop this skill as it is very important for me in my desired profession. | Team Orientation | Though I prefer to work alone, these days I have started participating actively in the team activities and have already received positive feedback about the same from my friends. However, I am still putting in efforts to better perform. | Strategic Orientation | I am using the technique of writing an idea on a sheet of paper and think of several strategies to about it to develop my strategic skills. However, I am not being quite successful on this task. However, my efforts are still on to develop this skill | Creativity | This is one skill I lack completely. I can think logically and make appropriate decisions. However, lack of creativity is still my negative and I am quite not sure about developing this skill. |

Advantages And Disadvantages Of A Multinational Corporation Finance Essay

Advantages And Disadvantages Of A Multinational Corporation Finance Essay The entities which are operating in more than one country are called Multinational Corporations. The typical Multinational Corporation functions with a headquarter in one country while other facilities are based in other countries. Multinational Corporation is also referred to transnational corporation. The model of the Multinational Corporation may vary but its simplest form is one that is headquarter in one country and its working units in other countries. Its main reason is that companies take advantage of reducing cost for the production of goods and also for the services. Its another form is that all main functions are performed in the origin country of parent company and subsidiaries are less function independently. The start of such kind of business is traced is very old near about 17th century but in the 21st century. Multinational Corporation also comes in existence due to merger of different companies in different countries. Advantages of Multinational Corporation: There are many different reasons why a company practices as a Multinational Corporation. These reasons are given below: Multinational companies can avoid or reduce their transportation cost. Economies of scale also can be achieved. Multinational companies have less chance of bankruptcy than small or non-multinational companies. Research and development process is also more in practice. Wage level in different countries is different, which is a major advantage. Due to globalization, different markets are available. Currency Fluctuations: Currency fluctuation is referred to the changes of a relative value in one currency when compared to other country. The process of currency fluctuation is occurring every day which brings changes in rate of exchange of different currencies of different countries. It is the currency fluctuation which attracts is investors to invest in different currencies for gaining the profit. There are upward or downward movement in the currencies that refers to appreciate or depreciate of currencies. If an investor invests in a currency if that currency depreciates in accordance to investors own currency then there is a profit while if that currency appreciates in accordance of the investors own currency then there is a loss. Political issues may cause the currency fluctuation. If there are political issues of currency fluctuation there will be short term impact also it may be long term. What is FOREX (Foreign Exchange)? Foreign exchange is trading of one type of currency for another. Foreign exchange has no physical location and no central exchange like other financial markets. It operates through a global network of banks, corporations and individuals trading one currency for another. The foreign exchange market is the worlds largest financial market which works 24 hours in a day which trades a huge amount of currencies of different countries. Not like any other financial market, investors can counter to currency fluctuations caused by economic, political and social events at the time when they occur, without having to wait for exchanges to open. The currency markets are not new that they have been around for as long as banks have been established for the dealing and transactions of money. What is relatively new is the openness of these markets to the individual investor, mainly the small- to medium-sized trader. A Short History of the Foreign Exchange Trading Market: Foreign exchange markets mainly established to make easy cross border trade in which there is involvement of different currencies by governments, companies and individual investors. More ever these markets generally existed to supply for the international movement of capital and money, even the initial markets had speculators. Today, a great part of Foreign Exchange market working is being determined by assumption, arbitrage and professional dealing, in which currencies are traded like any other commodity. The Retail Investors only means of gaining contact to the foreign exchange market was through banks that transacted in a huge amount of currencies for commercial and speculation purposes. After exchange rates were allowed to float freely in 1971, the volume of trade has been increased over the time. Most of the worlds major currencies were pegged to the US dollar due to an agreement that is called the Britton Woods Agreement. The participating countries try to maintain the value of their currencies against US Dollar also with the rate of the gold. These countries are bounded to devalue their currencies for the purpose of gaining advantage. Types of markets and transactions: There are two types of markets or transaction which are very common. Spot market / spot transaction Forward market / forward transactions In spot transactions, buying and selling certain amount of foreign currency are based on current market rate and settlement are made and paid for without more ado. On the other hand, Forward transactions, are deals arranged for future settlement, to be paid for on decided dates on or after delivery. Characteristics of Foreign Exchange Market: There are some characteristics of Foreign Exchange Markets such as: Volume of trading is very huge. By the use of technologies like internet the foreign exchange trading centers are linked together to get updated information and for the trading. Due to the integration of trading centers there is no significant arbitrage. Functions of Foreign Exchange Markets: What kind of functions of Foreign Exchange Market performs are give below: Transfer of purchasing power. Financing of inventory in transit. Hedging. Conversion of currencies. Reducing of foreign exchange risks. Participants of the Foreign Exchange Market: There are the participants of the Foreign Exchange Markets those participates in dealing and transactions. Banks Foreign Exchange Dealers. Individuals Firms. Speculators Arbitrageurs. Central Banks Treasuries. Foreign Exchange Brokers. Foreign Exchange Transactions Advantages: The advantages of the foreign exchange transactions are such as: Commission Free Transaction Direct Transactions Round the Clock Market Leverage (huge investment refers to huge profit) Highly Liquid Free online information Foreign Exchange Transactions Disadvantages: There are some disadvantages of foreign exchange transactions such as: Leverage (huge investment refers to great loss) Brokers (inexperienced, unfaithful) Spreads (broker generally quote a fixed spread) Role of Foreign Exchange Markets in the Global Market Place: Exchange rate Foreign currency denominated financial instrument Exchange rate is referred to that how much units of one currency are required to purchase the one unit of other currency and foreign exchange denominated financial instrument is referred to bond, stock or a bank deposit whose value is denominated in the currency of another country. When you carry out business in a foreign country, you will have to exchange currencies involved at some existing exchange rate. The price of one countrys currency in terms of another country is called the exchange rate. When the currency of one country drops in value there will be an equivalent appreciation of value in another countrys currency. Depreciation (devalue of currency) occurs when it takes more currency to purchase the currency of another country. Appreciation (increase in value of currency) is just the opposite; the currency is able to purchase more units of the other countrys currency. Since most currencies are esteemed according to the market, usually there are constant changes to exchange ra tes. Foreign Exchange Risks: Foreign exchange risk is usually defined as Multinational Corporation faces variability in their currency values of assets, liabilities and operating income due to the unexpected currency fluctuation. That variability can be reduce or eliminate partially or fully. Classification of Exposures: There we can classify the Foreign Exchange Exposures in three types such as: Transaction exposures Translation exposures Economic exposures All these exposures severally affect the outcome of the business. How these exposures affect a business now we see individually all these exposures. Transaction Exposure: Transaction risk occur when any company makes trade, borrows, lend and sell the fixed assets of its subsidiaries company; all these operations takes lot of time so during that time when times come for the payment then there is real change of exchange rate so it refers to the Transaction Exposure. Let see an example, a Pakistani importer make a deal for the some kind of commodity with United States suppliers after the delivery when time comes for payment if the importer pays in local currency (PKR) then the United States supplies is at risk, if the payment is in foreign currency (USD) then the importer is at risk. Usually in this case exporter is at risk of exchange rate risk because supplier quotes the price in buyers currency. Translation Exposure: Translation risk have to face when a parent company making its financial statements in its local currency. Because when consolidating the earnings, liabilities and assets of the subsidiaries company to the local currency then the exchange rate has changed, due to this exchange rate change the value of that asset when acquired has changed same to liability and earnings. Financial statements have to make in a single local currency for the stakeholders. Subsidiaries companies value (assets, liabilities, earnings) is shown in financial statements in local currencies at current exchange rate. Translation exposure depends upon the translation method. There are two common methods are used for the translation such as: Current / non-current method Monetary / non-monetary method In current / non-current method current assets and liabilities are translated at current rate (closing rate at the time of making balance sheet), while non-current assets and liabilities are translated at the historical rates (the rate when asset was acquired and the liability incurred). According to this method only current assets and liabilities are exposed to currency fluctuation. In monetary / non-monetary method the monetary assets and liabilities are translated at the current rate while the non-monetary assets an liabilities are translated at the historical rate. In this method monetary assets and liabilities are exposed to currency fluctuation. Economic Exposure: The change in the present value of a company due to change in future cash flows which caused by the fluctuation of the exchange rates. Cash flows can be classified in to two types like cash flows due to contractual commitment and the cash flows due to anticipated future transactions. Every transaction exposure is included in the economic exposure. Let see an example, when the cost of a Multinational Company incurs in one currency and its sales generated in other currency so, the competitive advantage of the Multinational Company is affected by the change in exchange rate. Simply profit of the Multinational Company can decrease if the cost currency appreciates and

Portrait of a Cartographer :: Creative Writing Essays

Portrait of a Cartographer Someone must decide how to color maps. Where to put the pale yellow, coral pink, the olive green, burnt orange, magenta. Where to put the darkest shades of blue. The lightest. There is something of symmetry, of composition. There is topography to consider. Demographics. The vast expanse of open land, open water, the sensuous curves of coastline, of mountain ranges, of rivers with their writhing bodies and forked tongues. The color of the ocean is according to its depth. In terms of Indonesia, of Nova Scotia, of Sudan, colors are arbitrary. They reject symbolism, existing only to say look here, I am this and not the other. Differentiation, identity within borders. To imagine each color as a body, each convex to the concave of another, like spoons stacked, like lovers in bed, like the earthen layers of sedimentary rock. Pages of a history book warped from moisture. In the skies of the northern hemisphere, I have learned to trust Orion. His delicate belt of three hanging sensuously off-center, suggesting contraposto. I imagine he must look much like stone, marble perhaps. Michelangelo's David. Head of frozen curls, rippled abdomen, arms to the side, large curled hands like leaves. A summer sky in Africa, I could not find him so I trusted the Southern Cross. Four stars are one more than three. I am the space between stars. In stellar cartography, you will know me as such. Smothered by darkest nebula, clusters of blue-white giants. Orphaned objects in deep sky, brilliant for the taking, I push them apart with my palms. I could swallow them whole but my throat is too small, my belly distended and blue like an infant. And that is the way I cry. There in my narrow boat cutting across a black sea, no moss. Carina the keel, Vela the sail. Flapping of white light across my face. Carry me from this world of names, of butterflies asphyxiated, pinned down across blue velvet. Each wing goes unremembered in this sky, this world of moon stations. The phoenix was remembered too late. She needed room to breath; she has choked on ash. No one heard her cry out, but I felt the earth, the night sky quake. The Pleiades are seven sisters, a young and hot open cluster of stars. Daughters of Atlas and Pleione. Violet beauties, a core of white heat.

History of Marijuana :: American History Weed Medicine Essays

History of Marijuana Marijuana has been used both recreationally and medicinally for centuries. There are numerous accounts of its medicinal qualities in multiple historical artifacts. Its use dates back to 2737 B.C. when the Chinese emperor, Shen Nung, used it for medicinal purposes including malaria, gout, poor memory, rheumatism, and analgesia (Carter et. al., 2003). Eastern Indian documents, in the Atharvaveda, dating back to 2000 B.C. also refer to its medicinal use. The Jamestown settlers cultivated hemp produced by the marijuana plant. They used these fibers to make clothing, rope, and canvas because of its quality and durability. Physicians in the 19th century were prescribing cannabis as a pain reliever, an anticonvulsant, and for migraine headaches (Doweiko, 2002). Following his work in India in the 1840's William O'Shaughnessy introduced medicinal marijuana to the United Kingdom. Queen Victoria used marijuana for dysmenorrhoea during the same time period (Carter et. al., 2003). Smoking marijuana recreationally began to spread in the United States in the 1920's. It began to spread from Mexico and New Orleans up the Mississippi river. Jazz musicians, labor workers, and river boatmen were quickly taking to its euphoric effects (Gettman, 1995). Smoking marijuana also became more popular during Prohibition when more people began cultivation of the plant and importing it into the U.S. to replace alcohol (Doweiko, 2002). In 1942, marijuana was removed from the United States Pharacopoeia and the Federal Government began to criminalize non-medicinal marijuana possession and use (Carter et al., 2003). Marijuana became extremely popular in the 1960's and, today, is considered the most widely used illicit drug in the world, Canada, and the United States (Gettman, 1995). Pharmacology and Chemistry of Marijuana Cannabis is known to contain over 400 chemicals in which about 70 are classified as plant cannabinoids. The human body produces naturally occurring cannabinoids. The cannabinoids are lipophilic. Delta-8 and Delta-9 Tetrahydrocannabinol (THC) have been found to produce most of the psychoactive effects of marijuana (Carter et al., 2003). Delta-9 Tetrahydrocannabinol appears to be the most abundant cannabinoid and the main source of cannabis' impact. Cannabidiol is the second most predominantly active ingredient. It becomes Tetrahydrocannabinol as the cannabis plant matures and the T etrahydrocannabinol then breaks down into cannabinol Approximately 40 percent of the plant's resin in some strains of cannabis are cannabidiol. Each cannabis strain differs in

Chocolate History Essay

All chocolate starts with a seed called a cocoa bean that is grown on a small tree. Many countries in Central and South America produce cocoa beans. The history of chocolate starts in Latin America, where the cocoa bean was first discovered about 2,000 years ago on a tropical tree. The first people recognized to have used these beans to make any kind of chocolate were the Maya’s. They called it the kakawa bean, which is where the origin of the world chocolate began. They most often used the bean to make a spicy, foamy drink. Later, the Aztecs discovered the cocoa bean. Eventually this was introduced in Europe after the Spaniards came to Central America. When the Spaniards began experimenting with the bean, they began to add other spices to it, such as cinnamon and sugar, to give the chocolate a sweeter taste. Soon, the rest of Europe started drinking it and it became a popular drink that only the rich could afford. In the 1600’s the first chocolate house was opened and this flavor was able to reach the mouths of many other people. In the early 1800’s, solid chocolate was created. It became more affordable to everyone and throughout time more recipes were experimented with, creating many different types of chocolate. There are many different types of chocolate such as White, Dark (bittersweet), Milk, Semi-Sweet and even Baking Chocolate (unsweetened). White chocolate isn’t really considered chocolate because it has no cocoa solids in it, it is made of the fat from the cocoa beans known as cocoa butter. White chocolate has a creamy consistency and taste. It lacks flavor because it contains no chocolate liquor which gives chocolate the bitter strong chocolate flavor. White chocolate is not normally used in cooking unless it is a replacement for dark or milk chocolate. It is used mainly for decorating. Dark chocolate is the healthiest type of chocolate. This chocolate contains a large amount of disease-fighting flavonoids, anti-oxidants also found in red wine and lots of different fruit and vegetables. Its anti-oxidants can significantly improve blood pressure, prevent blood clots, slow the oxidation of low-density lipoproteins (LDL) cholesterol making it less likely to stick to artery walls and also reduce inflammation. Eating dark chocolate can also lower insulin resistance, the main problem behind diabetes. Milk chocolate does not contain as much chocolate liquor as dark chocolate, which gives it a softer chocolate flavor. This chocolate is much sweeter than any other. It is the most popular type of chocolate. Milk chocolate is more difficult to temper properly and more prone to overheating which would make it thick and lumpy if it comes into contact with water. Milk chocolate can be used in pretty much anything you want to be sweet. The difference between regular chocolate and baking chocolate is baking chocolate has less sugar and no fat and its bitter while regular chocolate is sweet and sugary. Tempering means improving the consistency, durability or hardness of a substance by heating and cooling it. Tempering is done by melting solid chocolate to a temperature high enough that the crystals in the cocoa butter break down. Once the chocolate is fully melted, it must be cooled to about 82F, a temperature at which crystals will start to form again so that the chocolate can eventually re-solidify. The chocolate’s temperature is then raised back to about 90F, where it is very smooth and can be poured into chocolate molds and used for other things. White, milk and dark chocolate can be tempered. Tempered chocolate is very glossy, has a firm finish and melts smoothly at around body temperature. Chocolate that has not been tempered or that has been improperly tempered will look flat or discolored. Tempering can be done in 2 ways by hand, or through a process called seeding. Tempering by hand can be done by tabliering where melted chocolate is poured onto a cool marble surface and worked with spatulas until it has cooled down sufficiently. More melted chocolate is added back and incorporated in to the tabliered chocolate to bring it back to the final working temperature. Through the process of seeding, chocolate is melted and a small amount of finely chopped solid chocolate is added into the melted chocolate and stirred in. Adding solid chocolate will lower the temperature of the melted chocolate and it will start to temper the melted chocolate. When it comes to baking, chocolate does not need to be tempered because it is being incorporated into another form. Tempering chocolate is good for dipping foods, for a more clean finish.

Crude Distillation Unit

A REPORT ON CDU: HEAT EXCHANGE & INTEGRATION BY Mudit 2010A1PS349P Amanpreet Singh 2010B4A1356P Rishu Gupta 2010A1PS401P AT IOCL REFINERY, GUWAHATI A Practice School-I station of BIRLA INSTITUTE OF TECHNOLOGY & SCIENCE, PILANI July, 2012 PREFACE We feel immense pleasure in presenting before you this final report on our PS-1 program IOCL Guwahati refinery. This report encompasses a comprehensive discussion of what we learnt on this program. The report starts with a brief introduction about the organization i. e. IOCL Guwahati refinery.We have kept discussion in this section brief to focus more on our Project ‘Heat exchange and integration in CDU ’. The main report is divided into 4 sections. To start with, the first Section is a basic introduction to Crude distillation unit, its process and products. Heat exchange is among the most important activity for crude distillation units. The 2nd part of the report focuses on this heat exchange process occurring in the crude disti llation unit of Guwahati refinery. Necessary data regarding all the heat exchangers has been provided in a tabular manner to make understanding easier.The concept of critical heat exchanger is introduced subsequently in the 3rd section along with the case study of some important heat exchangers of the process. Heat duty &other calculations presented in this section for heat exchangers are clearly explained in step by step manner along with formulas used. Through these calculations we have tried to analyze whether these exchangers are working efficiently. In the Last part of the report we have given an introduction to ‘heat integration’ one of the most important tool for increasing energy efficiency of a process.Points discussed about heat integration in this section are: Meaning, Importance, its need in CDU, Tools. We have concluded this part with an example of heat integration done in 2010 in pre-heat train of CDU, showing how it helped saving energy & increasing effic iency. A final conclusion and glossary are provided to sum up the report. We hope you have a good time reading this report and find it informative and useful. Mudit, Amanpreet & Rishu Birla Institute of Technology & Science Pilani 333031 2 ACKOWLEDGEMENTA comprehensive report always requires the goodwill, encouragement, guidance and support of many people so we would like to start by thanking our college BITS pilani for initiating program like ps-1 thereby giving us the opportunities to visit real time industries and learn by working on hand in organizations as big as IOCL. Our sincere thanks to Mr. B K Das, CPNM and Mr. P S Sonowal for assigning us this important project on heat integration in refinery and getting us in contact with the required person in each unit. Without their help this whole program would not have been possible.We are indebted by the constant support and mentoring provided by Mr. Vijay Kumar, TS for the preparation of this report. Also, we take this opportunity to thank all the chief engineers, and workers we have met in different units who have received us with open hearts and helped us in learning the vast array of knowledge that a refinery holds. Mr. E Edmund of CDU, Mr. A. Bairagi of OM&S are just the few of these names with whom we shared numerous informative talks which finally went into the preparation of this report. We also express our deep sense of gratitude to IOCL administration for providing us with necessary data nd making our stay a pleasant one. Thanks to our families & friends for their constant support and encouragement throughout the period of preparation of this report. It goes without saying that we are sincerely grateful to our instructor, Mr. Prasantha G for coordinating this ps-1 program and giving us opportunity to present before him this report. Thank you all Birla Institute of Technology & Science Pilani 333031 3 TABLE OF CONTENTS S No. Topic Page No. Preface Acknowledgement List of Illustrations Abstract 2 3 5 1. 1 1. 2 1. 3 Introduction IOCL Guwahati refinery Production Units of Guwahati refinery 6 7 8 9 2. 1Crude Distillation Unit CDU : Process Description 11 3. 1 3. 2 3. 3 CDU Pre-heat Train (Heat exchange Process) Introduction Shell & tube Heat exchanger Pre-heat train : Description 15 16 17 Heat Exchanger Performance Calculation Critical heat exchangers Performance analysis: Examples ? S-25A/B ? S-11C ? S-23A/B 22 23 23 25 27 Heat Integration Heat Integration : Introduction Heat Integration in CDU ? Need for heat integration in CDU ? Heat integration in Guwahati Refinery ? Example from pre-heat train 30 32 32 32 33 Conclusions References Bibliography Glossary 35 36 37 38 4. 1 4. 2 5. 1 5. 2 Birla Institute of Technology & SciencePilani 333031 4 LIST OF ILLUSTRATIONS ILLUSTRATION NO. DESCRIPTION 1. 2. 1 1. 3. 1 IOCL Indian market share Table showing Production units 2. 1. 1 2. 1. 2 CDU flow diagram Table Showing CDU product properties 3. 2. 1 3. 3. 1 3. 3. 2 Types of Shell Tube heat e xchanger Pre-heat train flow diagram Table Showing cold section heat exchangers Table Showing mid section heat exchangers Table Showing hot section heat exchangers 3. 3. 3 3. 3. 4 4. 2. 1 – 4. 2. 3 4. 2. 4 – 4. 2. 6 4. 2. 7 – 4. 2. 7 5. 1. 1 5. 2. 1 5. 2. 2 Properties, Design data, Practical data of S-25A/B Properties, Design data, Practical data of S-11CProperties, Design data, Practical data of S-23A/B Steps of Heat Integration Heat integration in Pre-heat train S-11/c before & after heat integration Birla Institute of Technology & Science Pilani 333031 5 ABSTRACT Title of the Project: CDU: HEAT EXCHANGE & INTEGRATION Key Words: Crude distillation, Heat exchange, Heat integration, CDU-Pre heat train Project Areas: Heat exchange, Process design & optimization, Energy Abstract: In this work is on Crude distillation unit in a refinery & discusses the heat exchange process in it and introduction of the concept of heat integration which is of wide importance in CDU .CDU is used for crude fractionation and requires a temperature of 354 oC. To increase the temperature of crude 2 step process is used; heat exchange with product streams & furnace. In the shell & tube type heat exchangers of Guwahati refinery Low temperature crude exchanges heat with high temperature streams of SRGO, RCO etc. in 3 stages(cold , mid, hot). The performance of some of these heat exchangers have a major impact on production and are classified as ‘Critical' on the basis of different criteria like frequent fouling, Large surface area.Calculation of heat duty, LMTD of some of these heat exchangers(s/15, S/23a-b,s-24) is done using design & practical data to check whether they are working efficiently as compared to design. Heat integration is an important concept to increase energy efficiency of process through heat recovery. Tools like pinch analysis are used in high energy demanding units like CDU to optimize the Heat Exchanger Network for maximum efficiency. Analy sis of past heat integration done in Pre heat train of CDU is taken as an example for analysis. Signature(s) of Students(s) Date Signature of PS Faculty DateBirla Institute of Technology & Science Pilani 333031 6 1. 1 INTRODUCTION This Report is an analysis of the one of the most key elements of any crude distillation unit i. e. ‘Heat Exchange’ & ‘Heat integration’. The report is based on Work in CDU of Guwahati refinery. Crude distillation units are used for the fractionation of crude into more valuable products using their difference in boiling points. Increase in temp for distillation us achieved in 2 steps; first step is the heat exchange of crude with product streams at high temperatures. In the next step a furnace is used to further elevate the temperature.Our main point of discussion in this report is the first step of heat exchange called the Pre-heat train. The pre-heat train consists of 3 sections: Cold, Mid & hot. The purpose of each section is t o recover heat from hot product stream of RCO, SRGO etc and supply it to crude through a shell-tube type heat exchanger. The details about various heat exchanger used in process are presented in the report. Performance of some heat exchanger is more critical on overall heat exchange than others; these heat exchangers are classified as ‘Critical heat exchangers'. Constant monitoring of efficiency of these heat exchangers needs to be done.As Example calculations like heat duty, LMTD is done in this report for some of these critical heat exchangers (S-11C, S-23A/B) to check their efficiency. Crude distillation is an energy intensive process. With increasing oil costs, the focus is to maximize energy recovery. One way to do this is ‘heat integration' which is a technique to design a process to minimise energy consumption. Tools like pinch analysis are used for obtain an optimized heat exchanger network for heat integration in CDU. The retrofitting of the HEN in CDU is taken as case study in report to realize importance of heat integration.Meaning of all the key terms used in the report can be found in the Glossary. Necessary data used in the report has been obtained through manuals & officials of Guwahati refinery. Birla Institute of Technology & Science Pilani 333031 7 1. 2 IOCL GUWAHATI REFINERY ? IOCL Indian Oil Corporation limited is largest state owned company in terms of revenue having ‘Maharatna’ status. It is ranked 98th in the Fortune global 500 listing. It’s biggest player in Indian downstream oil & Gas sector and operates10 of India's 21 refineries with refining capacity of 65. 7 MMTPA.Major ones are Panipat, Mathura, Guwahati, Gujrat, Haldia etc. Its products are Petrol, Diesel, LPG (Indane), ATF, lubricants, Naphtha, Kerosene etc. (1. 2. 1) Sector (India) IOCL Share Petroleum products 49% Refining capacity 37% Downstream pipelines 67% ? Guwahati Refinery Guwahati refinery is the first public sector refinery of India com missioned in 1962. It had an initial capacity of 0. 75 MMTPA which was extended to 1 MMTPA in 1986. Guwahati Refinery receives the raw crude from Oil India Limited & has a product line to Siliguri. Final products of Guwahati Refinery are Motor spirit (MS), ATF, Kerosene, LPG, Diesels, Petroleum Coke Sulphur. It’s an environmentally Conscious refinery with modern effluent treatment facilities, Stack gas monitoring, Products with strict environmental specifications like BS-3 & BS-4. Birla Institute of Technology & Science Pilani 333031 8 1. 3 PRODUCTION UNITS ? Shown below in the table are the various production units of Guwahati refinery along with their use, feed & products(1. 3. 1): Unit Purpose Feed Output CDU Separation of Crude into useful products by distillation. Raw CrudeLPG , Naphtha, RCO, Kero-1 &2 DCU Thermal Cracking to obtain useful products from higher ends RCO CK, CGO, CFO, RFO and RPC HGU Production of hydrogen Light Naphtha (LN) Hydrogen INDMAX FCC unit for m aximizing LPG production from residual stocks. CFO, CK, RCO LPG & Gasoline Quality improvement of Diesel, ATF by removing sulphur. SRGO, KERO 1 &2 BS 3 Diesel, ATF, SKO HDT Improving Octane No. of MS by Hydrotreating & Isomerization LN Isomerate (MS) HDT off gases Elemental Sulphur _ _ Waste water Effluent free water MSQU Recovering Sulphur SRU OM ETP Crude & product storage, Pumping & blendingTreatment of waste water to remove oil and suspended solids Birla Institute of Technology & Science Pilani 333031 9 CRUDE DISTILLATION UNIT Birla Institute of Technology & Science Pilani 333031 10 2 CDU: Process Description INTRODUCTION Crude distillation unit or CDU in short is first & most important unit for any refinery. It’s called the ‘Mother unit’ as its products forms the feed of other units. CDU receives its crude from OM (oil movement and supply section) where it is supplied by Oil India Ltd from upper Assam oil fields. Incoming crude has following properties (2. 1 . 1): PropertyDensity at 15 oC Water content Salt content(ppm) Sulphur content(ppm) Value 0. 8735 2. 05% 8. 7 0. 29 CDU then stripes the crude into various products like kero1, kero2, reduced crude oil, LPG, heavy gasoline and light gasoline using the distillation principle of difference in boiling points. KEY FACTS ? ? ? Installed in 1962. Revamped and modernized in 1986 & 2000. Capacity of 1MMTPA but currently processing 1. 3 MMTPA It’s an Atmospheric distillation unit (ATU) PROCESS DESCRIPTION A brief description of the different processes taking place in CDU is given on next page (2. 1. 2): 1.Pre heating train before Desalter: Crude is pumped by pumps P1/1A at a pressure of 15 kg/cm2 through a series of heat exchangers where its temperature is elevated to 130o C. Crude is gaining heat in these exchangers from pre fractionated overhead vapours(in s-26), RCO( in s-29), SR Kero1 etc. Birla Institute of Technology & Science Pilani 333031 11 2. Desalter: Demulsifier mixed crud e is fed at 130 o C to Desalter (v-101) where it is mixed with water through a mixing valve. The salt in crude dissolves in water and separated from the oil. Salt free crude on the other hand is pumped to Pre-topping column (CL-1) though 2 safety valves. 3.Pre-topping Column (CL-1): The average temperature of crude before entering pretopping column is 238 oC (achieved through heat exchange). The purpose of this column is to remove the straight run (SR) light gasoline and LPG from overhead and reduce the load on the main fractionating column. Shown below is the Flow diagram of CDU(2. 1. 1): 4. Atmospheric furnace (C 1 A): the crude coming from CL-1 bottom at 246 oC is fed to furnace. Furnace is fired by fuel oil (FO), Fuel gas (FG) or a mix of both supplied by DCU. The crude coming out of the furnace has a temperature of around 354 oC and goes to the flash zone of main fractionators’ column. 5.Main Fractionators column (CL-2): It’s the most important part of CDU. Cl-2 i s where the actual distillation is taking place crude is separated into different products of different cut. Stripping stream enters at the bottom. The various subsystems of CL-1 are: Birla Institute of Technology & Science Pilani 333031 12 a) Overhead system: The overhead of the column of the water and the Straight rum Heavy Gasoline (SRHG) are separated. b) Stripper column: A stripping column (CL-3) is attached to the main fractionating column . Its function is to strip apart (separate) kero1, kero 2 and straight run gas oil coming from main fractionating column. ) CL-2 Bottom Section: The remaining crude oil called as the reduced crude oil (RCO) comes out of the bottom of CL-2. RCO forms the feed of DCU 6. Light Gasoline /Heavy Gasoline Processing System: Un-stabilized light gasoline from CDU pre-toping column is stabilized in the stabilizer where LPG is recovered from it while heavy gasoline is split in the two naphtha splitter to separate LN (Light Naphtha), RN (Reformer Naphth a) and HN (Heavy Naphtha). The table below shows properties of the Products formed in the CDU(2. 1. 2): LN TBP cut HN Kero 1 Kero 2 SRGO RCO 65-135 135-165 165-190 190-300 300-370 370+ 11. 27 4. 90 8. 16 12. 11 22. 16 9. 7 0. 731 0. 786 0. 806 0. 866 0. 866 0. 9542 range Yield (% of crude) Density Birla Institute of Technology & Science Pilani 333031 13 CDU PRE-HEAT TRAIN (HEAT EXCHANGE IN CDU) Birla Institute of Technology & Science Pilani 333031 14 3. 1 INTRODUCTION As we have seen the temperature of the Crude oil needs to increase to 354 oC in CDU. This section is a discussion on how this is achieved. Why Crude needs to be heated in CDU? The various components of crude oil have different sizes, weights and boiling temperatures. Crude Distillation Unit is used to strip this crude into various products using the difference in their boiling points.Therefore for distillation to take place the temperature of the Crude has to be elevated to around 354 oC so that all the fractions of cr ude oil can vaporize and get separated. How Temperature of Crude is increased in CDU? The Temperature increase of Crude oil consists of 2 major steps: 1. A 3 Stage Heat exchange (called CDU pre-heat train) of crude with product streams at high temperatures using shell & tube type heat exchangers. This step results in crude being supplied at 246 oC (elevated from ambient) to the next step ‘The atmospheric Furnace’. 2. The atmospheric furnace (C-1A) is then used to further elevate the temperature.Modes of heat transfer in furnace are both convective and radiative the crude coming out of the furnace has a temperature of around 354 oC and goes to the flash zone of main distillation column (CL-2). Furnace alone is not used because it would to too expensive and Energy consuming. By exchanging heat with products, the pre-heat train is serving twin purpose; The Crude is being heated at the same the temperatures of product streams of SRGO, RCO, KERO is brought down which was nee ded for their storage. This heat would have otherwise been wasted. Our point of discussion in this report is the First step i. e. The Heat exchanger Network’ which we will now study in detail. Birla Institute of Technology & Science Pilani 333031 15 3. 2 SHELL & TUBE HEAT EXCHANGER The Pre heat train uses shell & tube type heat exchager for heat transfer. ? It consist of two main things as its name implies Shell & Tubes ? The shell is a large vessel with a number of tubes inside it. ? The principle of operation: Two fluids of different temperatures are brought into close contact but they are not mixing with each other. One fluid runs through the tubes, and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids.The temperature of the two fluids will tend to equalize. The heat is simply exchanged from one fluid to the other and vice versa. No energy is added or removed. Common types of shell and tube exchangers: Birla Institute of Technol ogy & Science Pilani 333031 16 3. 3 PRE-HEAT TRAIN: Description Our point of discussion in this report is first step of the 2 stages used for raising the temperature of crude i. e. the Heat exchanger network in which heat transfer occurs between crude and product streams of RCO, SRGO, and Kero 1. This network is also called the CDU pre-heat train.In this process the temperature of the crude is elevated form ambient conditions at which it is supplied from OM to 246oC. The heat needed for this is coming from the product streams which are at high temperatures. Dual purpose is served in this way: heating of crude as well as the cooling of product streams (needed for their storage). The pre-heat train is divided into three sections on the basis of temperature of crude flowing through them: 1. COLD section 2. MID section 3. HOT Section Shown below is the flow diagram of the CDU pre heat train (3. 3. 1): Birla Institute of Technology & Science Pilani 333031 17 1.Cold Section (before Desalt er): The crude from battery limit is pumped by pumps P-1/1A at about 15. 8 Kg/cm2 through a preheat train where it is heated to a temperature of 130 ? C before entering the Desalter (V-101). The following table shows the shell side & tube side streams of all exchanger in this section along with their inlet-outlet temperatures (3. 3. 2):Exchanger Service Shell Tube Total Surface area Heat Duty Temperature shell tube I O I O S-26 Gasoline Crude 300 x 1 2. 11 107 90 40 65 S-29 RCO Crude 171 x 1 0. 47 116 100 54 60. 3 S-12A Crude Kero 2 148 x 1 0. 92 60. 3 72. 6 130 82 S-27A/B Crude SRGO 183 x 2 1. 39 72. 5 0. 3 173 85 S-7 Kero 2 Crude 93 x1 1. 48 199 130 90. 3 109 S-11A/B RCO Crude 134 x 3 1. 49 165 115 109 122 2. Mid Section (Between Desalter and pre-topping column): The crude from the Desalter is pumped by pump P-21 A/B and divided equally into 2 streams (Train A & B) for further heating before entering the Pre-topping column. P-21A/B? Train â€Å"A†: S-24, S-9A, S-23A/B, S-9B /C, S-22 CL-1 Train â€Å"B†: S-4A/B, S-12B, S-25A/B The crude in train A is preheated by hot-streams of SR Gas Oil (in S-24), RCO (in S-9A, S-23A/B), SR Gas Oil (in S-9B/C), RCO (in S-22) to about 236 ? C. While the crude in Birla Institute of Technology & SciencePilani 333031 18 train B is preheated by SR kero circulating Reflux (CR) (in S-4A/B, S-12B) and RCO (in S-25A/B) to about 240 ? C. Desalted crude from both Train A and Train B streams are combined before entering the pre-topping column. Mixed preheat temperature achievable is around 238 ? C at which it is fed to pre-topping Column. Below is the table showing heat exchangers of mid section (3. 3. 3) Exchanger Shell Service Tube Total area Surface Heat Duty Temperature oC Shell Tube I S-9A Desalted Crude RCO S-23A/B RCO S-9B/C SRGO S-22 RCO S-4A/B Desalted Crude Desalted Crude RCO S-24 S-12B S-25A/B O I O SRGO – 0. 0 122 138 214 173 Desalted Crude Desalted Crude Desalted Crude Desalted Crude Kero CR 149 x 1 0. 61 184 195 138 152 148 x 2 1. 93 241 184 153 195 82 x 2 0. 54 272 214 195 218 149 x 1 0. 91 320 296 218 236 148 x 2 1. 67 122 161 190 164 Kero CR 148 x 2 1. 8 161 198 216 190 Desalted Crude 113. 15 x 2 2. 0 297 283 228 223 3. Hot Section (At CL-1 Bottom): The topped crude from CL-1 bottoms is pumped by pumps P-2/2A to exchangers S16/S-9D in series, where it is heated by SR Gas Oil Circulatory reflux. It then passes to exchanger number S-11C and further to S-21 where it is heated by Reduced Crude Oil (RCO) to about 246?C. At this Temperature pre topped crude enters Atmospheric furnace (C-1A). The table on next page gives details about every heat exchanger in this section (3. 3. 4). Birla Institute of Technology & Science Pilani 333031 19 Exchanger Service Shell Total area Surface Heat Duty Tube Temperature oC Shell Tube I S-16/9D SRGO CR S-21 RCO S-11C RCO Skimmed crude Skimmed crude Skimmed crude O I O 186 x 2 2. 16 291 250 197 257 175 x 1 0. 61 336 320 239 246 134 x 3 1. 49 336 320 239 246 Birla Institute of Technology & Science Pilani 333031 20 HEAT EXCHANGER PERFORMANCE CALCULATION Birla Institute of Technology & SciencePilani 333031 21 4. 1 CRITICAL HEAT EXCHANGER The critical heat exchangers are identified as the ones whose performance has a major impact on heat exchange rate, Production rate, product quality or environmental and health issues. Problem or inefficiency in any of the critical exchanger has a severe effect on overall heat exchange process occurring in the crude distillation unit. The engineers need to see that these exchangers are working efficiently for smooth running of the process (Though efficiency monitoring is important for every exchanger but the most attention has to be paid for Critical heat exchangers).Criteria for Classification: 1. Fouling: is accumulation of unwanted material of heat exchanger surface is called fouling. Fouling is inevitable in heat exchanger but certain heat exchangers are more prone to fouling than others. The se exchangers foul in short intervals and need to be cleaned frequently. Their regular maintenance is very necessary for the heat exchange process. E. g. is S-11/C in hot section is prone to frequent fouling. 2. Large surface area: Some heat exchanger have a very large heat transfer area which means they have a large contribution in total heat exchange taking place.Their inefficiency or by-passing them would have a vital effect of final crude temperature. For example S-23 A/B in the mid section of heat exchanger trains. 3. Single heat exchanger in line: If a heat exchanger is single heat exchanger in the line like the one used in circulating reflux then it cannot be stopped or by-passed. For any maintenance work on them the whole unit has to shut down. Example is S16/9D. In next section the basic performance measurement calculations like heat, Duty, LMTD, Heat transfer coefficient is done for some of these critical heat exchangers. Birla Institute of Technology & SciencePilani 33303 1 22 4. 2 PERFORMANCE ANALYSIS: Examples This section analyzes the performances of some main heat exchangers of pre-heat train through calculation of simple performance measurement tools like Heat duty, LMTD & Heat transfer coefficient. The definitions & formulas for these tools can be found in glossary at the end of the report. 1) S-25 A/B ? Type: Shell & tube ? Section: Mid ? Properties: Exchanger no. S-25A/B Service Shell No. of passes Shell Tube Tube RCO Desalted Crude 1 2 Total Surface area Heat Sq. M x no. of Duty element 113. 15 x 2 2. 0 (4. 2. 1) ? Design Data: Shell 54554 55454 296 241 (I) (O) 49. (uncorrected) Total flow (Kg/h) Operating temperature (? C) LMTD (? C) Tube 77586 77586 197. 7 240. 5 (I) (O) 47. 1 (corrected) (4. 2. 2) ? Practical data: Mass flow rate (RCO) = 59187. 5 Kg/hr S-25A/B Service Temperature,  °C Shell Tube Post M Shell side I 297. 5 O 283. 7 Tube side I O 231. 9 245 Nov 11 Exchanger No. 263 253 198 RCO crude 203 (4. 2. 3) ? Calculations: 1. Heat D uty (design): M*Cp*(Ti –To) = 2002813. 7 Kcal/hr Birla Institute of Technology & Science Pilani 333031 23 2. Heat Duty (practical): 559336 Kcal/hr 3. Correction factor for LMTD (practical): 1. 01 4. LMTD (practical): 52. 12 (uncorrected), 51. 7(corrected) ? Observation The practical heat transfer of 559336 Kcal/hr is much lower than the design heat duty of 2002813. 7 Kcal/hr. ? Conclusions 1. The exchanger is not working efficiently 2. Due to fouling the temperature difference across the crude side is low which is reducing the total heat exchange in the exchanger. Birla Institute of Technology & Science Pilani 333031 24 2) S-11/C ? Type: Shell & tube ? Section: Hot ? Properties: It’s a critical heat exchanger because of the frequent fouling Service Exchanger no. Shell Tube S-11C RCO PreDesalter No. of passes Shell Tube 1 2 Total Surface area Sq. m x no. of lement 134 x 3 Heat Duty 1. 49 (4. 2. 4) ? Design data: Shell Tube Total flow (Kg/h) 54554 55454 155171 Operating temperature (? C) 336 (I) 320 (O) 239 (I) LMTD (? C) _ 1551 71 246 (O) _ (4. 2. 5) ? Practical data: Mass flow rate: 59871. 5 Exchanger No. S-11C Service Shell Tube RCO Skimmed Crude Post M Nov ‘11 Temperature,  °C Shell side Tube side I O I O 327 315 257. 8 263 330. 2 275 231 255 (4. 2. 6) Birla Institute of Technology & Science Pilani 333031 25 ? Calculations: 1. Heat Duty (design): M*Cp*(Ti –To) = 6295320 Kcal/hr 2. Heat Duty (practical): 597382. 7 Kcal/hr 3. Correction factor for LMTD(practical) = 0. 75 4. LMTD (practical): 82. 84 (uncorrected), 80. 79(corrected) ? Observations: Heat transfer at present is 597382. 7 Kcal/hr which is satisfactory as compared to design heat transfer of 6295320. ? Conclusions: The present performance of the heat exchanger is satisfactory as compared to design. This little variation in the design heat duty and practical heat duty is due to variation in value of Cp of RCO with temperature. Birla Institute of Technology & Science Pilani 333031 26 3) S-23A/B ? Type : Shell & Tube ? Section: Mid (Train A) ? Properties: It is an critical heat exchager becase of its large heat transfer areaService Total Surface area No. of passes Shell Tube Shell Tube (Sq. m x no. of element) RCO Desalted Crude 1 2 148 x 2 Heat Duty 1. 93 (4. 2. 7) ? Design Data: Property Shell Tube Total Flow (Kg/h) Temperature (? C) I 54554 241. 0 O 54554 184. 0 I 77585 152. 70 O 77585 195. 0 Specific Heat (Kcal/kg-? C) 0. 646 0. 597 0. 566 0. 617 LMTD (? C) 38. 21 35. 6 (4. 2. 8) ? Practical data: Mass flow rate (RCO) = 59187. 5 Kg/hr Temperature  °C Service Shell RCO Tube crude Shell side Post M Nov ‘11 Tube side I 260. 2 O 230 I 145. 7 O 178. 8 253 230 142 160 (4. 2. 9) Birla Institute of Technology & Science Pilani 333031 27 Calculations: 1. Heat Duty (design): M*Cp*(Ti –To) = 1932602. 7 Kcal/hr 2. Heat Duty (practical): 1161000. 7 Kcal/hr 3. Correction factor: 4. LMTD (practical): (uncorrected), (corrected) ? Observations The pra ctical heat transfer of 1161000. 7 Kcal/hr is much lower than the design heat duty of 1932602. 7. The value of LMTD on the other hand is actually higher in case of practical situation ? Conclusions The heat exchanger is not working efficiently. Due to fouling the temperature difference across the crude side is low which is reducing the total heat exchange in the exchanger even after having a high LMTD value.Birla Institute of Technology & Science Pilani 333031 28 HEAT INTEGRATION Birla Institute of Technology & Science Pilani 333031 29 4. 1 HEAT INTEGRATION: Introduction In Today’s process industries like Guwahati refinery increasing energy efficiency is of prime importance. With the rising costs of input like crude, power the process has to be designed to have maximum energy recovery so as to reduce the costs. Heat integration is one of the ways to achieve this. 1. MEANING Heat integration is technique for designing a process to minimise energy consumption and maximise heat recovery.Its part of the broader term ‘Process integration’ which is a holistic approach to process design which emphasizes the unity of the process and considers the interactions between different unit operations from the outset, rather than optimising them separately. 2. NEED FOR HEAT INTEGRATION Heat integration can lead to substantial reduction in the energy requirements of a process thus saving costs. It’s the answer to following questions: ? Are the existing processes as energy efficient as they should be? ? What changes can be made to increase energy efficiency without incurring any costs? What is the most important utility mix for the process? What investments can be made to increase energy efficiency? ? How to put energy efficiency & other targets like emission reduction, increasing plant capacity into one coherent strategic plan? 3. TOOLS FOR HEAT INTEGRATION ? Pinch Analysis The term pinch technology was introduced by Linnhoff to represent a set of the rmodynamics based tools that that guarantee minimum energy levels in design of heat exchanger networks. Pinch Technology provides a systematic methodology for energy saving in processes & total sites. Its prime objective is to provide energy saving by better process heat integration. Here are some of its key features:Birla Institute of Technology & Science Pilani 333031 30 1. Based on the first and second law of thermodynamics. 2. Pinch analysis is applicable for both new design as well as the retrofit systems. 3. It was developed for crude distillation systems but is now applicable to large number of process industries. 4. In addition to energy conservation Pinch technology provides general improvements 5. Some famous Pinch softwares are Pinch ExpressTM, Aspen PinchTM & SuperTargetTM ? Retrofit analysis Retrofit analysis is done to in old process processes to see what modifications suggested by pinch analysis are most suitable for the project.It looks into the optimization of the p rocess through energy capital trade off. In oil refining, retrofit designs are far more common than grass root applications. The retrofit targets are preferably achieved by re-using existing equipment more efficiently rather than installing new equipments and incurring new costs. 4. STEPS IN HEAT INTEGRATION Shown below are the different steps of heat integration (5. 1. 1) Birla Institute of Technology & Science Pilani 333031 31 5. 2 HEAT INTEGRATION IN CDU 1. IMPORTANCE OF HEAT INTEGRATION IN CDU Distillation is the largest single energy consumer in the Refinery.Large section of oil is spent in fuelling the CDU itself. It is energy intensive process as the temperature of the crude has to be elevated to a high temperature of 354 oC. This increase in temperature is achieved by exchanging heat in various heat exchangers between crude and streams of RCO, SR Gasoline, Kero 2 etc which are at high temperature. Heat integration focuses on achieving maximum energy recovery from these strea ms through an optimized HEN so that the crude can be supplied at highest possible temperature to the furnace, thus saving energy.A recent development in distillation technology has shown potential savings of up to 15-40 % through the heat? integrated exchanger network (pre-heat train) & distillation column. 2. HEAT INTEGRATION AT CDU GUWAHTI REFINEY What has been done? 1. The basis of heat integration in heat exchange process is putting process hot streams in thermal contact with process cold streams. We have already seen how product hot streams of RCO, SRGO etc at high temperature are used to exchange heat with the crude oil at low temperature. 2.Designing of an Optimized Heat Exchanger Network in pre-heat train using heat integration tools like pinch analysis & retrofit analysis in July 2010. This design allows maximum energy heat recovery. What can be done? 1. Using heat integrated distillation columns. HIDC can save energy by recovering excess heat from the rectifying section fo r usage in the stripping section. Birla Institute of Technology & Science Pilani 333031 32 2. Seeing the interactions of HEN and distillation column and applying combined heat integration for whole unit.