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 Modified |
Checkout Status |
NTIS |
PB95-174777 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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. |