Unit 07 1Q) Give a comparison of parallel flow and counter flow heat exchangers. Why are counter flow heat exchangers mosly used? 2Q) Determine the overall heat transfer coefficient based on the outer area of a 3.81cm OD and 3.175cm ID brass tube (k=103.6w/mk) if the heat transfer coefficient for flow inside and outside the tube are 2270 and 2840w/m2k respectively and the unit fouling resistances at inside and outside are Rfi=Rfo=0.0088m2k/w 3Q) Derive an expression for logarithmic mean temp difference
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The narrative of the life of Fredrick Douglass shows his experiences and views of certain realizations of the institution of slavery and his own condition during his time in its confines. In this writing he explores many conditions related to the salve life‚ I will start with the identity of slaves or more a lack of their identity. I think he makes some strong arguments as to the identity lose of slaves. He starts by letting us know that he has no idea how old he is because he had never saw any
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setting (time) • 1818–1841 setting (place) • Eastern Shore of Maryland; Baltimore; New York City; New Bedford‚ Massachusetts EXAMING CHARACTERS Frederick Douglass - The author and narrator of the Narrative. Douglass‚ a rhetorically skilled and spirited man‚ is a powerful orator for the abolitionist movement. One of his reasons for writing the Narrative is to offer proof to critics who felt that such an articulate and intelligent man could not have once been a slave. The Narrative describes
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problem into components. 1. Local effects -e.g. poisoning humans breathing bad air. 2. Regional effects - fallout from airborne pathogens - infections‚ particles‚ chemicals. 3. Global effects - changing interactions between the atmosphere and sun‚ weather effects‚ effects on plants and oceans. Developments in the media made "green" the slogan for action to limit the adverse effects of air pollution. The media often suggested that this is a relatively new consensus that there is an environmental
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Earth Day is an annual event‚ celebrated on April 22‚ on which day events worldwide are held to demonstrate support for environmental protection. It was first celebrated in 1970‚ and is now coordinated globally by the Earth Day Network and celebrated in more than 192 countries each year. In 1969 at a UNESCO Conference in San Francisco‚ peace activist John McConnell proposed a day to honor the Earth and the concept of peace‚ to first be celebrated on March 21‚ 1970‚ the first day of spring in the
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The American Dream‚ Family‚ and Fighting to Fulfill Dreams all have a predominant role in Raisin in The Sun‚ and throughout the plot all of these issues are addressed. As the play goes on‚ you can see and learn the character’s hopes and aspirations‚ and the obstacles and problems they will face to try to fight to see their dreams happen. As a colored family in the 1960’s in suburban Chicago‚ due to what was going on in the times around them‚ this family believes that maybe colored people are being
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Earth Day Some people who talk about the environment talk about it as though it involved only a question of clean air and clean water. The environment involves the whole broad spectrum of man’s relationship to all other living creatures‚ including other human beings. It involves the environment in its broadest and deepest sense. It involves the environment of the ghetto which is the worst environment‚ where the worst pollution‚ the worst noise‚ the worst housing‚ the worst situation in this country
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proceed to analysis of that text. The steps in this exemplar‚ from summary level understanding to analytical/inferential understanding‚ are intended to help build this habit of mind in students. |Text Title(s): Frederick Douglass‚ Narrative of the Life of Frederick Douglass an American Slave‚ Written by Himself | |Genre/Text Structure: novel excerpt
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Frederick Wiseman (born January 1‚ 1930 in Boston‚ Massachusetts‚ U.S.) is an American filmmaker‚ documentarian‚ and theatrical director.[1] He came to documentary filmmaking after first being trained as a lawyer. He has won numerous film awards‚ as well as Guggenheim and MacArthur fellowships.[2][3] In 2003‚ Wiseman was awarded the Dan David Prize for his outstanding films‚ which make us reckon with our emotions and the cost to society of marginalizing those who cannot speak for themselves. In
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Sylvia Cervantes American lit 220 Professor Cormier 12 November‚ 2013 Frederick Douglass Guide Questions Narrative of the Life of Frederick Douglass‚ an American Slave NOTE: Before beginning this reading‚ it would be a good idea to refresh your memory on the causes of the Civil War. What were the arguments for and against slavery? 1. Why do you think Douglass chose to include the graphic details in the first chapter? I think it was all to show that he really
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