||Mobile air conditioner refrigerant evaluation /
Harmon, Dale L. ;
Rhodes, W. J. ;
||Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory,
||EPA/600/D-89/064; AEERL-P-527; EPA-68-02-4285
Air pollution ;
Air conditioners ;
Mobile equipment ;
Motor vehicles ;
Fugitive emissions ;
Freon 12 ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||17 pages ; 28 cm
The paper discusses an evaluation of refrigerant from mobile air conditioners. The data gathered indicate that CFC-12 refrigerant does not degrade significantly with use. Furthermore, while small amounts of contaminant are removed with the refrigerant during servicing, most of the contaminants remain with the compressor oil. Current servicing practices do not require that the compressor oil be changed unless the compressor is replaced. The presence of HCFC-22 in concentrations above the specification for new CFC-12 (0.5%) is rare; it occurred in less than 1% of the 227 cars tested. HCFC-22 contaminant quickly leaks out of the automotive air conditioner through hoses and does not appear to cause operational problems while in the system.
"For presentation at: 82nd Annual Meeting Air and Waste Management Association, Anaheim, California June 25-30, 1989." "EPA/600/D-89/064." "Published paper; 4/88-3-89." "March 1989." "Dale L. Harmon, project officer." Microfiche.