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OPTIMIZATION STUDY OF THE COMPRESSION/ABSORPTION CYCLE.

Author(s) : AHLBY L., HODGETT D., BERNTSSON T.

Type of article: Article, IJR article

Summary

THE IMPROVEMENT IN CYCLE PERFORMANCE WHICH IS GAINED BY OPTIMIZING THE TEMPERATURE GRADIENT IN THE ABSORBER IS CONSIDERABLE, PARTICULARLY FOR SITUATIONS WITH SMALL EXTERNAL TEMPERATURE GRADIENTS. THE EXTERNAL AND INTERNAL TEMPERATURE GRADIENTS SHOULD BE EQUAL TO MAXIMIZE THE CYCLE PERFORM THE INTRODUCTION OF A SOLUTION LOOP, HOWEVER, CHANGES THIS AND THE OPTIMUM INTERNAL TEMPERATURE GRADIENT IS ALWAYS LARGER THAN THE EXTERNAL GRADIENTS. THE OPTIMUM POINT OF OPERATION IS FOUND BY STUDYING THE CHANGES IN THE COMPRESSOR AND PUMP AND THE HEAT LOSS OBTAINED IN THE SOLUTION HEAT EXCHANGER WITH THE WORKING CONDITIONS. A COMPARISON OF A COMPRESSION/ABSORPTION CYCLE, USING AMMONIA-WATER, AND A COMPRESSION CYCLE WORKING WITH PURE R12, ALWAYS RESULTS IN A HIGHER COP FOR THE FORMER. THE CAPACITY OF THE AMMONIA-WATER SYSTEM IS ALSO CONSIDERABLY HIGHER.

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Pages: 16-23

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Details

  • Original title: OPTIMIZATION STUDY OF THE COMPRESSION/ABSORPTION CYCLE.
  • Record ID : 1991-1524
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 14 - n. 1
  • Publication date: 1991/01

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