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PERFORMANCE AND EFFICIENCY EVALUATIONS OF NEW FLUORINATED ETHERS, PROPANES, AND BUTANES
Citation:
Gage, C. AND G. Kazachki. PERFORMANCE AND EFFICIENCY EVALUATIONS OF NEW FLUORINATED ETHERS, PROPANES, AND BUTANES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-94/121 (NTIS PB94190899), 1993.
Description:
The paper gives results of a thermodynamic evaluation that investigates the performance of 15 new chemicals as refrigerants, the impact of the new chemicals on compressor size and operating characteristics, and the efficiency of the refrigerants in vapor compression cycles. n general, the new refrigerants fell into a class of refrigerants whose isentropic compression starting from saturated vapor ends in wet vapor. heir efficiency in the basic vapor compression cycle is low, but improves substantially in a cycle with internal heat exchange. everal alternatives are identified as promising replacements. s a step in evaluating the potential performance of the 15 compounds, the evaluation using limited property data was performed on the chemicals for use as refrigerants in supermarket, chiller, refrigerator/freezer, heat pump, and air conditioning applications. he 15 chemicals included 10 fluorinated propanes, 3 fluorinated butanes, and 2 fluorinated ethers which are potential chlorofluorocarbon (CFC) and hydrochlorofluorocarbon replacements. (NOTE: In the mid 1980s, while early discussions were held regarding the partial phaseout of CFCS, the EPA and the EPRI recognized the need for additional research into the identification and synthesis of new chemicals. rom this work came several new chemicals that include the 15 that are discussed here.)
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PERFORMANCE AND EFFICIENCY EVALUATIONS OF NEW FLUORINATED ETHERS, PROPANES, AND BUTANES