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RECORD NUMBER: 291 OF 516

OLS Field Name OLS Field Data
Main Title Investigation of HFC-236ea and HFC-236fa as CFC-114 Replacements in High-Temperature Heat Pumps.
Author Kazachki, G. S. ; Gage, C. L. ; Hendriks, R. V. ; Rhodes, W. J. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher May 94
Year Published 1994
Report Number EPA-68-D4-0005; EPA/600/A-95/016;
Stock Number PB95-174777
Additional Subjects Environmental chemical substitutes ; Refrigerants ; Air pollution abatement ; Thermodynamics ; Alternatives ; Heat pumps ; Halohydrocarbons ; Performance evaluation ; Cooling rate ; Fluorohydrocarbons ; HFC-236ea ; HFC-236fa ; CFC-114 ; Coefficient of performance
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB95-174777 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 05/26/1995
Collation 6p
Abstract
The paper discusses a thermodynamic analysis of HFC-236ea and HFC-236fa as ozone-safe CFC-114 alternatives in a vapor-compression cycle at high-temperature heat-pump conditions. The cooling capacities and the coefficients of performance (COPs) are evaluated. Parameters assessed as criteria for performance evaluation and for reliable performance were: cooling capacity; electric power input, current, and voltage; COP; compressor volumetric and isentropic efficiencies; and discharge, winding, and oil temperatures. With all three refrigerants, the compressor ran 1800 hours without failure and without indication of excessive noise or vibration.