High-efficiency regenerative adsorption heat pump.


The technology for long-lived, reliable heat-powered, sorption refrigeration systems for spacecraft use has recently been applied to improve the energy efficiency of ground-based adsorption heat pumps. Novel regenerative heating techniques can now enable more than 90% of the sorption compressor's required heat to be reused. Analysis has predicted that the cooling and heating COPs will be significantly better than for any other single-stage, heat-powered heat pump including the Shelton/Tchernev heat regenerative design. The cooling COP with the new regenerative system using zeolite/water sorption has been estimated to be approximately 1.5 (heating COP of 2.5) for pumping heat from 4.4 to 37.8 deg C. Other fluids considered are R134a (cooling COP = 0.9) and ammonia (cooling COP = 1.2).


  • Original title: High-efficiency regenerative adsorption heat pump.
  • Record ID : 1994-1199
  • Languages: English
  • Source: ASHRAE Transactions 1993.
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.


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