You are here:
COMPOSITION CHANGES IN REFRIGERANT BLENDS FOR AUTOMOTIVE AIR CONDITIONING
Citation:
Jetter*, J J., F. R. Delafield, A. S. Ng, K. Ratanaphruks, AND M. W. Tufts. COMPOSITION CHANGES IN REFRIGERANT BLENDS FOR AUTOMOTIVE AIR CONDITIONING. ASHRAE TRANSACTIONS 105(1):157-162, (1999).
Impact/Purpose:
Published Journal Article
Description:
Three refrigerant blends used to replace CFC-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, the HCFC-22-containing quaternary blend had the greatest changes in composition, while the HFC-134a-containing binary blend had the smallest changes in composition.