Results of Soft-Optimized System Tests in ARI's R-22 Alternative Refrigerants Evaluation Program
نویسندگان
چکیده
The phaseout ofhydrochlorofluorocarbon (HCFC)-22 will require manufacturers of air-conditioning and refrigeration equipment to find suitable alternatives for this widely-used refrigerant. The R-22 Alternative Refrigerants Evaluation Program (AREP) was established by the Air-Conditioning and Refrigeration Institute (ARI) to assist manufacturers in obtaining performance data on a multitude of R-22 and R-502 alternatives. One step in AREP is the testing of standard systems, modified for use with a given alternative refrigerant. Results from these "soft-optimized"_ system tests are summarized and evaluated for two compositions each of two different refrigerant blends. Various techniques were employed to "soft-optimize" systems, with varying efficacy. No single alternative appears as a universal replacement for R-22. Furthermore, it is noted that the AREP tests represent only a first step in manufacturers' efforts to bring next-generation equipment to the marketplace.
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