Evaluation of alternatives for HFC-134a refrigerant in motor vehicle air conditioning

Technical Report · Mon Sep 01 00:00:00 EDT 1997

OSTI ID:529874

Jetter, J J; Smith, N D; Ratanaphruks, K; Ng, A S; Tufts, M W

HFC (hydrofluorocarbon)-134a is currently used as the refrigerant in motor vehicle air conditioners. The EPA`s (Environmental Protection Agency`s) NRMRL (National Risk Management Research Laboratory) has evaluated lower global warming alternatives for HFC-134a in motor vehicle air conditioning. Alternative technologies were evaluated. Four pure chemicals and one azeotropic mixture were identified and evaluated as alternative refrigerants for conventional systems, but were found to be unsuitable. The four pure chemicals were HFC-227ca, HFC-227ea, HFC-245cb, and HFE (hydrofluoroether)-143a. The azeotropic mixture was 51.7 weight percent HFC-134 and 48.3 weight percent HFC-245cb. The evaluation process and results are described in this paper.

• Research Organization: National Risk Management Research Lab., Research Triangle Park, NC (United States)
• OSTI ID: 529874
• Report Number(s): PB--97-192371/XAB
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHLOROFLUOROCARBONS
MATERIAL SUBSTITUTION
REFRIGERANTS