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Exergetic performance assessment of gas engine heat pumps.

Author(s) : HEPBASLI A.

Summary

A gas heat pump (GHP) or a gas engine-driven heat pump (GEHP) is a new type of heat pump (one of today's promising new technologies). In evaluating the efficiency of heat pump (HP) systems, the most commonly used measure is the energy (or first law) efficiency, which is modified to a COP for HP systems. However, for indicating the possibilities for thermodynamic improvement, energy analysis is inadequate and exergy analysis, which has been recently widely used in the design and performance evaluation of thermal systems, is needed. This study, which is one of the limited studies, presents exergy analysis and assessment of GHPs aimed at identifying improvement potential. An illustrative example is also presented. The exergy destructions in each of the components of the overall system are determined. Exergy efficiencies of the system components are also derived to assess their performances and to elucidate potentials for improvement.

Details

  • Original title: Exergetic performance assessment of gas engine heat pumps.
  • Record ID : 2008-2730
  • Languages: English
  • Source: Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
  • Publication date: 2007/06/10

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