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OPEN-CYCLE ABSORPTION HEAT PUMPS FOR LOW GRADE HEAT UTILIZATION.

Author(s) : PEREZ BLANCO H., GROSSMAN G.

Summary

THIS PAPER FOCUSES ON THE THEORETICAL ANALYSIS OF THE PERFORMANCE OF A TWO-STAGE ABSORPTION HEAT PUMP, OPERATING WITH AN OPEN-CYCLE DESORBER. THE HEAT PUMP IS INTENDED TO UPGRADE LOW-TEMPERATURE WASTE HEAT TO USABLE TEMPERATURES. THE WASTE HEAT IS TYPICALLY AVAILABLE AS HOT WATER AT 323 TO 343 K (50 TO 70 DEG C), AND IT IS USED TO ACTUATE THE DESORBER OF THE HEAT PUMP. AT THESE RELATIVELY LOW TEMPERATURE LEVELS, IT BECOMES NECESSARY TO HAVE A SINK OF LOW REFRIGERANT VAPOR PRESSURE IN ORDER TO ACCOMPLISH A LARGE TEMPERATURE BOOST. AN OPEN-TYPE DESORBER PROVIDES THIS SINK WHEN THE WORKING FLUIDS ARE WATER-LITHIUM BROMIDE OR WATER-LITHIUM CHLORIDE SOLUTIONS.

Details

  • Original title: OPEN-CYCLE ABSORPTION HEAT PUMPS FOR LOW GRADE HEAT UTILIZATION.
  • Record ID : 1984-1626
  • Languages: English
  • Publication date: 1982
  • Source: Source: ASHRAE Trans.
    vol. 88; n. 1; 825-843; 8 fig.; 2 tabl.; 16 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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