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Comparative simulation and investigation of ammonia-water absorption cycles for heat pump applications.

Author(s) : ENGLER M., GROSSMAN G., HELLMANN H. M.

Summary

The objective of the study has been a comprehensive investigation of various ammonia-water cycles, with operating conditions and different design parameters varied over a wide range to compare their performance. To this end, a modular simulation program (ABSIM) was employed, which makes it possible to simulate absorption cycles in varying configurations. The cycles investigated increase in complexity from the basic single-effect cycle, through the same cycle with an added precooler, through an added solution-cooled absorber and solution-heated generator, to the generator-absorber heat exchange (GAX) and branched-GAX cycles with different types of branching. The results of the investigation show cooling COPs ranging from about 0.5 for the simplest single-effect cycle to about 1.0 for the GAX cycle.

Details

  • Original title: Comparative simulation and investigation of ammonia-water absorption cycles for heat pump applications.
  • Record ID : 1998-0235
  • Languages: English
  • Source: Ab-sorption 96. Towards sustainable technologies. Proceedings./ Ab-sorption 96. Vers les technologies durables. Comptes rendus.
  • Publication date: 1996/09/17
  • Document available for consultation in the library of the IIR headquarters only.

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