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Chlorine-free fluorinated ethers and fluorinated hydrocarbons are being considered as potential long-term replacements for R11 and R114, both CFCs. Simple cycle modelling has been done with in-house refrigeration models based on the Carnahan-Starling-DeSantis (CSD) equation of state (EOS) to determine the performance of these chlorine-free compounds in a variety of refrigeration applications. In the future, a standard compressor calorimeter using an oil-free diaphragm compressor will be used to evaluate the performance of these chlorofluorocarbons (CFCs) and their proposed alternatives at the Stratospheric Ozone Refrigeration Laboratory of the US Environmental Protection Agency (EPA).

KEYWORDS: calculating, performance, fluorocarbons, hydrocarbons, chillers, refrigerants, R11, R114, refrigeration, models.

Citation: ASHRAE Transactions 1993, Vol.99, pt.1