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Concept of a novel hybrid compression–adsorption heat pump cycle.

Number: 0553

Author(s) : SHAMIM J., AUTI G., KIMURA H., BOCCAMAZZO F., HU M. H., HSU W. L., DAIGUJI H., MAJUMDAR A.

Summary

A vapor compression heat pumps (VCHPs) can achieve a high coefficient of performance (COP), but the lack of eco-friendly fluorocarbon refrigerants is a serious problem. On the contrary, an adsorption heat pump (AHP) is a heat-driven heat pump that does not use fluorocarbon refrigerants but is less compact and has higher installation costs. To overcome the limitations of VCHP and AHP, this study proposes a hybrid compression–adsorption heat pump (HCA-HP) cycle that circulates a mixture of CO2 and a porous metal–organic framework (MOF) in a VCHP system. Model calculations show that the MOF–CO2 HCA-HP cycle can release heat at 50% lower pressure than the transcritical CO2 HP cycle and that the COP can be improved by developing a pair of MOF and gases with a step-shaped adsorption isotherm and a large heat of adsorption.

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Pages: 10

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Details

  • Original title: Concept of a novel hybrid compression–adsorption heat pump cycle.
  • Record ID : 30031425
  • Languages: English
  • Subject: Technology, HFCs alternatives
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0553

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