Monday, February 17, 2020

Cryogenic system, gas separation and liquifaction Research Paper

Cryogenic system, gas separation and liquifaction - Research Paper Example It is used in the production of gases like O2, N2, Argon, Neon, Krypton, and Xenon. Cryogenic separation has proved to be economical, increases the difference in the boiling points of constituents, process takes up large quantities and achieving purity of gases is tenable. Cryogens like LOX, LH2 are used in rocket propulsion while LH2 is being considered for automobile (Flynn, 2005). LN2 is used as a coolant in cryogenic systems as well as gas refrigeration in cases where low-temperature gases are required. Refrigeration makes use of the principle of heat change in the system, which is equal to the total internal energies (U) and the work (W); . It makes of the first and second Law of thermodynamics. Cryogenic systems are closed cycle systems comprised of the compressor, liquid containers, expander, and heat exchanger. Analysis of cryogenic process follows the Joule-Thompson expansion, which is an isenthalpic expansion process;  (Barron, 1985). The systems are engineered to obey Laws of physics from the field of thermodynamics, heat transfers and

Monday, February 3, 2020

Mango Medley Essay Example | Topics and Well Written Essays - 3000 words - 1

Mango Medley - Essay Example According to Mango Medley’s official website, the business operates between 5:00 P.M. to 12:00A.M weekdays and 12:30 P.M to 12 A.M on weekends. However, it is important to note that the restaurant specializes in Asian cuisine and desserts with much attention in mango delights (Mango Medley). The prices of their dishes vary between $4 and $8 for deserts and $10 to $28 for cuisines. It has been successful in bringing in customers who are keen on their products, and who have less time to socialize during the day but can only find time at late night. Mango Medley has established a standard in the restaurant business in Sun set area owing to the quality of products it serves to its customers through its diverse menu items. The main area of concern of the business is to provide Hong Kong style dessert to local customers living in the surrounding neighborhood especially the young Asian customers, and other customers who may be interested in the cuisines and late night deserts. It purposes to turn the Chinese habitual tradition of gathering around late night to partake their desert into their advantage by opening late into the night. This is not the only target going by the decision to include a diverse menu which takes care of other locals living in the area. Sunset area of San Francisco has a population that has kept on swelling with Asian population more than other races. This explains the reasons why the leadership of the area is being steered by Asians, example being the present mayor. The 2013 estimate report on the census shows that Asians comprises over 33% of the Sun set population translating to over 837,442 people in San Francisco area alone (USCB, 2013,Areavibes & J, 2013). This group’s population is reported to be growing faster relative to other races in the area hence the need to focus on their favorite dish. Other groups are also targeted but not majorly. Chinese especially those coming from Hong Kong, Chengdu or Southern China have a