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- W4256368466 abstract "This chapter discusses refrigeration, types of systems, estimation of horsepower per ton, refrigerants, ethylene/propylene cascaded systems, and steam jet type utilities requirements among others. A table is presented that shows the three most used refrigeration systems and approximate temperature ranges. For estimating horsepower per ton, a quick but accurate graph is presented that shows the design engineer how much horsepower is required for mechanical refrigeration systems, using the most practical refrigerant for the desired temperature range. Refrigerant replacements and the damage to ozone layer by certain refrigerants have lead to phasing out of certain refrigerants. The chemicals being phased out are chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). Replacements are hydrofluorocarbons (HFCs) and certain blends. A table showing the recommended replacement refrigerants for various applications is given. Steam and cooling water requirements for barometric steam jet refrigeration units are shown in the graphs for given available cooling water temperature and delivered chilled water temperature. The graphs are for 100 PSIG motivating steam. For 30–50PSIG steam, the quantity required will increase by a factor of about 2 for 400F chilled water and a factor of 1.5 for 550F chilled water." @default.
- W4256368466 created "2022-05-12" @default.
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- W4256368466 date "2005-01-01" @default.
- W4256368466 modified "2023-09-24" @default.
- W4256368466 title "Refrigeration" @default.
- W4256368466 doi "https://doi.org/10.1016/b978-075067856-8/50011-6" @default.
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