Air Conditioning Technology Essay - 550 Words

Physics Dissection Paper: Air Conditioning Technology (Essay Sample) Content: PHYSICS DISSECTION PAPER: AIR CONDITIONINGName of StudentInstitutionDefinition of an Air Conditioning System:It is a system designed to lower the temperature of air, dehumidify, filter, and circulate the air to create a comfortable room atmosphere. There are several systems, though we shall study the working principle only, and not the types.Components of Air Conditioning SystemThe CoilsTwo coils, one on each side of the house, inside and outside. Something cold, the refrigerant is channelled through the coil inside the house before we inject warm air across the coil. This allows the coil to absorb heat from the house air.RefrigerantA nontoxic, noncorrosive, and non-flammable Freon 12 or Freon 22 is passed through the coil lumen. Freon does run in a loop. It passes via the indoor coil, via copper pipe to the outdoors, through the coil on the outdoor, and re-enters the indoor coil via a different pipe.See figure below.As the Freon in the coil turns from liquid to gaseo us state, it absorbs the heat from the air in the building. The gaseous Freon does leave coil warmer than the incoming liquid.Let us assume that a cold low-pressure liquid is passed across the coil evaporator coil inside the building, the air of the building at 75F blows across the refrigerant before moving out of the coil at 55F. The cold Freon, liquid, which entered the evaporator coil exits as a gas at low pressure. The cold gas at low pressure goes outside and compresses into a hot gas at high pressure. Then the hot gas is channelled through the condenser coil at 85 - and the outdoor air blows across it. The hot gas will dissipate some heat into the outdoor air, causing the hot gas to condense back into a warm liquid. To labour my point, the outdoor air can enter the evaporator coil at 85and leave at 100. The warm liquid is take back into the building where it is expanded. This causes a significant temperature drop, which in turn, condenses the air into a cold liquid at low pressure. That is the basic principle of an air conditioner.The use of Psychometric Charts is the best way to solve air conditioning mathematical problems.KEYPoints 1 and 2 represent the moist air from the air conditioning system entering the building, and the moist air leaving the building respectively.t1 =temperature of moist air from the air conditioning system entering the buildingt2= temperature of moist air from the air conditioning system leaving the buildingma= mass flow rate of refrigirant in kg/sec1= specific humidity of moist air from the air conditioning system entering thebuilding2= specific humidity of moist air from the air conditioning system entering thebuildingh1= specific enthalpy of moist air from the air conditioning system entering thebuildingh2= specific enthalpy of moist air from the air conditioning system leaving thebuildingtx, x, and hx , are the intermediate values of temperature, specific humidity and specific enthalpyin that orderCpma= specific heat capacity of the refrigerant ie Freon

The Kite Runner And A Death Of A Salesman Essay - 1821 Words

‘’Compare and contrast the ways in which Hosseini and Miller explore the presentation and treatment of father and son relationships in The Kite Runner and A Death of a Salesman.’’ Relationships between families may not perpetually consist of happiness and fulfilment but always have an undeniable bond of unconditional and everlasting love. The concept of relationships particularly that of a father and son is a resonant theme in both the novel ‘’The Kite Runner’’ written by Khaled Hosseini and in the play ‘’A Death of a Salesman’’ by Arthur Miller. Hosseini explores complex father and son relationships through the character Amir- the narrator and protagonist of the novel and his interactions with his father Baba, family friend Rahim Khan and adopted son Sohrab. Set during the violent rise and reign of the Taliban in Afghanistan and ending after the attack of the world trade centre in 2001 triggering the fall of the Taliban. Juxtaposed to Miller who presents father and son relationships in a more positive era of the post-war boom of 1948, where the American Dream appeared to be more realistic. Through the cha racter of Willy- an ambitious salesman who not only strives in achieving the dream for himself but also his children Biff and Happy. Hosseini presents father and son relationships negatively at the start of the ‘’The Kite Runner’’ by addressing the constant need for a son to gain approval of his father. ‘’To have had the decency to have turned out a little more likeShow MoreRelatedSurvival Guide : The Great Gatsby, And Death Of A Salesman1796 Words   |  8 PagesChristine Powroznik English Final Exam: Survival Guide Pursuit of Happyness, Dead Poet’s Society, The Great Gatsby, Death of a Salesman 1) The American Dream The Great Gatsby: The American dream is a chance to start a new life in a new setting. In this book, Gatsby’s American dream was Daisy. Once he met her, he devoted his life to pleasing her: he bought the mansion across the bay from her, had extravagant parties, etc. He always held onto his hope, or the green light, that he would win herRead MoreBelonging Essay4112 Words   |  17 PagesHawthorne, Nathaniel The scarlet letter AF Hemingway, Ernest, A clean well-lighted place, in Complete short stories AF Hinton, S.E. Outsiders YA Home and away: Australian stories of belonging and alienation ed. Bennett, Bruce AF Hosseini, Khaled The kite runner AF YA http://en.wikipedia.org/wiki/The_Kite_Runner Hosseini, Khaled A thousand splendid suns AF YA Irving, John The cider house rules AF Ishiguro, Kazuo Never let me go AF Hulme, Keri The bone people AF Jones, Lloyd Mister Pip AF Joyce, JamesRead MoreDeveloping Management Skills404131 Words   |  1617 Pagesmanagement school also repo rted: I can’t believe it. I went for my second interview with a company last week, and I spent the first half-day participating in simulation exercises with ten other job candidates. They videotaped me playing the role of a salesman handling an irate customer, a new director of personnel putting down a revolt by the â€Å"old guard,† and a plant manager trying to convince people of the need to install a radically new production process. Boy, was I unprepared for that! The message

Ms 13 Gang - 2747 Words

MARA-SAVATRUCHA (MS13) The Civil War in the early 1980s in El Salvador cost the lives of about 100,000 people. Besides, two million people are reported to have immigrated to the United States, due to the uncertain political and social conditions there. A big chunk of the refugees arrived and settled in the Rampart area of Los Angeles. They needed low cost housing and employment. That area was already afflicted with gangs and crimes. For the local population of Mexican-Americans, this was the most unwelcome development. The combustible youth immigrants from Salvador took the problem of their survival in response to the victimization at the hands of local gangs, as a serious challenge and formed a new gang by name Mara Salvatrucha,†¦show more content†¦The MS-13 gang has cliques, or factions, located throughout the United States and is unique in that it retains is ties to its El Salvador counterparts. With cliques in Washington DC, Oregon, Alaska, Arkansas, Texas, Nevada, U tah, Oklahoma, Illinois, Michigan, New York, Maryland, Virginia, Georgia, Florida, Canada, El Salvador, Guatemala, Mexico, and several other South American countries, the MS-13 gang is truly international and on the verge of becoming the first gang to be categorized as an organized crime entity.† (MS13 Gang†¦.)The strength of the gang members is 36,000 in Honduras. The age of the members is normally between 11 to 40 years. Initially started as a defensive organization to protect El Salvadorian immigrants from the cruelty of LA gangs, the gang soon began targeting the members of the Salvadorian community as well. Criminality became a way of life for the M-13 gang members, with no holds barred. It soon turned out to be business of profiteering, and it expanded rapidly across the United States. By the 1990s, its network spread like the octopus growing in all directions, and its membership had reached the East Coast. Initially they were not well-organized. In the early 2000s , the organizational pattern had changed. The leadership of these newly organized units emanated from faraway places like California and El Salvador. Cells began to sprout all over the country. In Texas and the RioShow MoreRelatedMs 13 Gang Essay1704 Words   |  7 PagesViolence The word gang-everyone knows what it means or what it stands for. Of course by the time children get to the end of their elementary years they’ve heard of know gangs such as; the Cribs, Bloods, Latin Kings, Vatos Locos, but none of those names cause as much fear and terror as the gang called La Mara Salvatrucha aka MS-13. La Mara known for their psychotic methods of killing and running their turf, no other gang comes close to causing the same fear as La Mara Salvatrucha (ms-13gang.com). ForcedRead MoreEssay on MS-13: A Dangerous Gang1167 Words   |  5 PagesFor many Americans MaraSalvatrucha or commonly known on the streets as (MS-13) is an unfamiliar gang but to (FBI) Federal Bureau Investigation,(ATF) Alcohol, Tabaco, Firearms and Explosives, and local law enforcement agencies,MS-13 is an uprising globalized menace of ruthless criminals who are growing in numbers exponentially. These plagues of criminals are not only making their mark here in the United States but they a re deeply rooted in their country of origin, El Salvador and all throughout CentralRead MoreMs-131124 Words   |  5 PagesMS-13 final MS-13 History and Origins The Mara Salvatrucha gang originated in Los Angeles, in the 1980s by Salvadoran immigrants in the neighborhood between Pico and Wilshire also know as the citys Pico-Union neighborhood. They immigrated to the United States Due to a 12-year civil war in El Salvador, which resulted in over 100,000 deaths and over a million refugees(www.ms13gang.com). The Salvadorian refugees and immigrants predominantly settled in southern California and Washington, D.CRead MorePeer Group : The World s Most Dangerous Gang1664 Words   |  7 Pagesdocumentary on MS-13, the World’s Most Dangerous Gang, highlights the importance of peer pressure between humans within society. â€Å"Gang† or â€Å"clique† mentalities are part of what creates our relationships, friendships, and every day human interactions. The stronger a bond between individuals and their core values, beliefs, and interests, the more influential and attractive a gang/clique mentality will be to others seeking a group o f friends to fit into. Many children are associated with gangs at a youngRead MoreA Summary On The Gang1100 Words   |  5 PagesMay 2015 MS-13 Gang To be considered violent, you must know what violence is. Violence is the behavior with the intention of physically causing damage, pain, or some sort of physical action that would cause harm to someone else. When people are violent, they can form groups. These groups are usually gangs. Some of the most deadly and violent gangs are Los Zetas, Aryan Brotherhood, Latin Kings, and the most violent Mara Salvatrucha, or MS-13 (Erkan). Mara Salvatrucha is a transnational gang that hasRead MoreGang Culture in the West Essay721 Words   |  3 PagesGroups identical of gangs are said to have first appeared in the West region as early as the 1890’s. It is proposed that the predecessors of urban gangs in the West were the palomilla (small groups of young Mexican men). These emerging gangs grew within Mexican culture along the immigration trail that began in Mexico and continued along a route through El Paso and Albuquerque, and onward to Los Angeles (sagepub). The first Mexican Los Angeles gangs, the Bogardus called â€Å"boy gangs† in 1926, were modeledRead MoreThe New Gang Became Known As The Mara Salvatrucha Stoners ( Ms Stoners )977 Words   |  4 Pages1980’s vast amounts of the refugees migrated to Los Angeles (LA), which is the home of 1,000+ gangs. The refugees were not welcomed to LA and became ostracized in the Hispanic community as it had been controlled by Mexican street gangs (Eighteenth Street gang). This caused some of the refugees to form a group of their own. The new gang became known as the Mara Salvatrucha Stoners (MS Stoners). The gang begins as a group who was all about smoking week and having a good time. Over time, they startedRead MoreThe Gang s Cut Of A Range Of Criminal Enterprises And Activities1029 Words   |  5 Pagesalso known as MS-13 originated in Los Angeles California. Salvadoran immigrants formed MS-13 to protect themselves from other established gangs of Los Angeles, who were predominantly composed of Mexica ns and African-Americans. I thought that it was really interesting how the gang members were recruiting new members at such a young age. They were targeting kids who came from a troublesome home life, broken homes, or parents who were addicted to drugs. In some way or another the gang family was fillingRead MoreThe Ways Of Groups Influence Individuals1018 Words   |  5 Pagesalso known as MS-13 originated in Los Angeles California. Salvadoran immigrants formed MS-13 to protect themselves from other established gangs of Los Angeles, who were predominantly composed of Mexicans and African-Americans. I thought that it was really interesting how the gang members were recruiting new members at such a young age. They were targeting kids who came from a troublesome home life, broken homes, or parents who were addicted to drugs. In some way or another the gang family was fillingRead MoreSecurity Threat Groups/Gangs in Prisons Essay1480 Words   |  6 PagesRunning Head: SECURITY THREAT G ROUPS/GANGS IN PRISONS Security Threat Groups/Gangs in Prisons Nicole Sage Kaplan University CJ130-03 Nancy Thode January 18, 2011 Security Threat Groups/Gangs in Prisons In our prison systems today, many different gangs pose a threat to our correctional staff and other inmates. In the United States, gangs exist in forty of the fifty states. These gangs bring violence, drug trafficking and racial unrest to our correctional system. The Aryan Brotherhood

Claudius Essay Example For Students

Claudius Essay Claudius was found hiding behind some balcony curtains by soldiers in the palaceafter the murder of Caligula by the Praetorian Guard. Instead of seizing andkilling him, as Claudius was almost sure they would do, they raised him up ontheir shoulders and made him emperor! Many writers have depicted Claudius askind of a befuddled, harmless old man who had been made Emperor so that Romanswould have someone in high places to make fun of. In truth, he was an ableadministrator and ruled well, making many improvements in the government. Hegave orders for the conquest of Britain, which the famous Julius Caesar had onlyinvaded and left. The invasion was well planned and carried out. After some ofthe early battles had been won, he came to Britain to lead the troops in person.Most historians, including Tacitus agree that Claudius desperately needed a fewmilitary victories to boost his image amongst the Roman people, and the conquestof Britain made him quite popular in Rome. Much of what contemporary historianswrote about the Roman emperors and their families at that time showed them in anextremely bad light. The passages in Suetonois Lives of the Caesars read like amodern soap opera. Tacitus deliberately painted the worst picture he could ofthe imperial families. He longed for the values and government of the old RomanRepublic. His attitude was that the only thing good that could be said about theEmpire with its overly powerful and autocratic rulers was that it was betterthan the constant civil wars of the Republican era. Claudius was never verylucky in love. One woman he was to have married died on their wedding day. Hislast wife, the infamous Messalina, continuously cheated on him, even giving manyof their household treasures to her lovers. Claudius was very much in love withher and tried to ignore what was going on. Messalina finally exhausted evenClaudius patience when she married one of her lovers while still married toClaudius. Told by his advisors that this was a direct threat to him as emperor,he sadly signed the order for her execution so eagerly prepared by the men closeto him. According to Tacitus, a centurion found her distraught and begging forher life. He offered her a dagger so she could kill herself, a death consideredhonorable by the Roman aristocracy. When she attempted but could not bringherself to commit suicide, he ran her through with his short sword. Claudiusfinally ended up marrying Agrippina the Younger, mother of the future emperorNero. Claudius may have died from an illness but the historians of the periodhave charged Agrippina with his murder. She supposedly fed him a dish ofpoisoned mushrooms.