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OLS Field Name OLS Field Data
Main Title Alternatives for Ozone-Depleting Refrigerants.
Author Smith, N. D. ; Ratanaphruks, K. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1993
Year Published 1993
Report Number EPA-68-D0-0141; EPA/600/A-94/117;
Stock Number PB94-190857
Additional Subjects Refrigerants ; Fluorinated hydrocarbons ; Environmental chemical substitutes ; Halogenated hydrocarbons ; Refrigeration systems ; Cooling systems ; Alternatives ; Thermal efficiency ; Energy efficiency ; Thermodynamic properties ; Thermophysical properties ; Environmental impacts ; Chlorofluorocarbons ; Ozone depletion ; Air pollution abatement ; Reprints ; HFC-236ea ; HFC-245ca
Library Call Number Additional Info Location Last
NTIS  PB94-190857 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/11/1994
Collation 6p
Abstract The paper gives results of tests of 2 of 11 compounds and several mixtures selected for intensive evaluation from about 40 new synthesized compounds that may serve as environmentally safe and effective refrigerant alternatives over the long term. The two compounds are: 1,1,1,2,3,3-hexafluoropropane (HFC-236ea), a potential alternative for CFC-114; and 1,1,2,2,3-pentafluoropropane (HFC-245ca), a potential alternative for CFC-11. These two compounds have zero ozone depletion potential, low global warming potential, and thermophysical properties closely matching those of the chlorofluorocarbons (CFCs) they may replace. Limited toxicity tests to date reveal no adverse toxic effects. Flammability tests of HFC-236ea and HFC-245ca show the former to be nonflammable and the latter to be marginally flammable depending on humidity and ignition source energy. Both compounds have been shown to be thermally and hydrolytically stable, miscible with the new polyolester lubricants, and compatible with numerous construction materials commonly used in refrigeration.
Supplementary Notes Presented at the Conference on Environmental Commerce (CONEC '93), Chattanooga, TN., October 17-20, 1993. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
NTIS Title Notes Rept. for Oct 91-Apr 93.
Title Annotations Reprint: Alternatives for Ozone-Depleting Refrigerants.
Category Codes 71M; 68A; 97J; 89B
NTIS Prices PC A02/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 424431038
Origin NTIS
Type CAT