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PERFORMANCE TESTING OF A SEMI-HERMETIC COMPRESSOR WITH HFC-236EA AND CFC-114 AT CHILLER CONDITIONS
Citation:
Kazachki, G. AND R. Hendriks. PERFORMANCE TESTING OF A SEMI-HERMETIC COMPRESSOR WITH HFC-236EA AND CFC-114 AT CHILLER CONDITIONS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-95/017.
Description:
The paper gives results of tests of both HFC-236ea and CFC-114 at a range of temperatures covering surface craft and submarine chiller conditions. vaporating temperatures ranged from 1.7 to 12.8 C, and condensing temperatures from 40.6 to 65.6 C, in order to develop a nine-point test map. olyol ester oil was used with the refrigerants. he tests evaluated suction and discharge pressures, their difference and ratio, cooling capacity, electric power input, compressor energy efficiency ratio (coefficient of performance), electric current, and compressor volumetric and isentropic energy efficiency. ompressor discharge, motor winding, and oil temperature were also monitored. FC-236ea is one of the strongest candidates for a CFC-114 alternative in surface craft and submarine chillers. n earlier thermodynamic evaluation of the available alternatives resulted in selection of HFC-236ea as the primary replacement candidate with coefficient of performance and volumetric capacity closest to those of CFC-114. reliminary performance evaluation of HFC-236ea at 4.4 C evaporating and 40.6 C condensing temperatures in an oil-free compressor was performed in mid-1993 with promising results when compared to CFC-114 performance at the same conditions. ome material compatibility and oil miscibility work has also been performed in support of HFC-236ea as a refrigerant.