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EXHAUST AIR HEAT PUMPS IN THEORY AND PRACTICE.

Author(s) : ENSTROM H., KENNE H.

Summary

EXHAUST AIR IS OFTEN USED AS A HEAT SOURCE. ITS TEMPERATURE IS HIGH AND UNIFORM, BUT ITS FLOW RATE IS LIMITED, SO THAT A SIGNIFICANT DECREASE IN TEMPERATURE IS DESIRABLE FOR SATISFACTORY ECONOMIC EFFICIENCY. THE METHOD FOR THE OPTIMIZATION OF HEAT EXTRACTION IS ILLUSTRATED BY EXAMPLES. IN RESIDENTIAL BUILDINGS, THE OPTIMUM DECREASE IS OFTEN ABOUT 20 K, RESULTING IN FROSTING. AN INTERESTING APPLICATION IS THAT OF EXHAUST AIR HEAT PUMPS. THE HEAT OF EXHAUST AIR IS TAKEN BY A REFRIGERATING CIRCUIT BY MEANS OF A LARGE NUMBER OF BATTERIES ARRANGED IN EXHAUST DUCTS. THE AUTHORS PRESENT THE EXPERIENCE DRAWN FROM THREE OF THESE PLANT, OF 1.3 TO 3.4 MEGAWATT. ENERGY SAVINGS ARE ABOUT 35%.

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Details

  • Original title: EXHAUST AIR HEAT PUMPS IN THEORY AND PRACTICE.
  • Record ID : 1988-1619
  • Languages: English
  • Source: Development in refrigeration, refrigeration for development. Proceedings of the XVIIth international Congress of Refrigeration.
  • Publication date: 1987/08/24
  • Document available for consultation in the library of the IIR headquarters only.

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