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LIMITING PERFORMANCE OF VAPOUR COMPRESSION HEAT PUMPS FOR HEATING FLUIDS.

Author(s) : CARRINGTON C. G., KNOPP T. C.

Type of article: Article

Summary

WHEN A VAPOUR COMPRESSION HEAT PUMP IS USED TO HEAT A FLUID, THE REFRIGERANT CYCLE MAY BE FUNDAMENTALLY DIFFERENT FROM A STANDARD RANKINE CYCLE WHICH OPERATES BETWEEN ISOTHERMAL RESERVOIRS. CONSIDERS TWO STRATEGIES. IN ONE, THE FLUID IS HEATED IN A SINGLE PASS CONDENSER, IN THE OTHER THE BODY OF FLUID IS KEPT FULLY MIXED AT ALL STAGES OF THE HEATING PROCESS. AN ISOTHERMAL SOURCE RESERVOIR IS ASSUMED AND THE PERFORMANCE OF NINE REFRIGERANTS IS EXAMINED. IN THE IDEAL LIMIT THE MIXED FLUID PROCESS HAS A HIGHER COP. IN PRACTICE THERE IS LIKELY TO BE NO CLEAR ADVANTAGE IN USING A FULLY MIXED SINK FLUID, ESPECIALLY WHERE THE TEMPERATURE LIFT IS GREATER THAN 50 K. FOR THE SINGLE PASS HEATING PROCESS LOWER PEAK CONDENSING TEMPERATURES MAY GENERALLY BE ACHIEVED. (INT. BUILD. SERV. ABSTR., GB., 18, N.5, 1983, 7, 83-01461.

Details

  • Original title: LIMITING PERFORMANCE OF VAPOUR COMPRESSION HEAT PUMPS FOR HEATING FLUIDS.
  • Record ID : 1984-2037
  • Languages: English
  • Source: Int. J. Energy Res. - vol. 7
  • Publication date: 1983/07
  • Document available for consultation in the library of the IIR headquarters only.

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