Three refrigerant blends used to replace the chlorofluorocarbon R-12 in automotive air conditioners were evaluated for composition changes due to typical servicing and leakage. When recommended service procedures were followed, changes in blend compositions were relatively small. Small changes in blend compositions caused no significant changes in refrigeration capacities. However, when recommended procedures were not followed, changes in compositions were relatively large. The amount of change in composition and the resulting effect on performance varied among the three refrigerant blends that were tested. Of the three blends, a quaternary blend containing hydrochlorofluorocarbon R-22 had the greatest changes in composition, while a binary blend containing hydrofluorocarbon R-134a had the smallest changes in composition.
Composition changes in refrigerant blends for automotive air conditioning
1999
6 Seiten, 3 Quellen
Aufsatz (Konferenz)
Englisch
Refrigerant blends for the automotive air conditioning aftermarket
Tema Archiv | 1990
|Refrigerant blends for the automotive air conditioning aftermarket
Kraftfahrwesen | 1990
|Refrigerant Blends for the Automotive Air Conditioning Aftermarket
SAE Technical Papers | 1990
|Automotive Refrigerant Air-Conditioning Hose Requirements
SAE Technical Papers | 2015
Automotive Refrigerant Air-Conditioning Hose Requirements
SAE Technical Papers | 2021