The performance of irreversible combined heat-pump cycles


Goktun S., Yavuz H.

JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol.30, no.20, pp.2848-2852, 1997 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 20
  • Publication Date: 1997
  • Doi Number: 10.1088/0022-3727/30/20/011
  • Journal Name: JOURNAL OF PHYSICS D-APPLIED PHYSICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2848-2852
  • Istanbul Technical University Affiliated: No

Abstract

The effects of thermal resistances and internal irreversibilities on the performance of combined heal-pump cycles (combined vapour compression-vapour compression treat pumping and combined vapour compression-absorption heat pumping) were investigated using a finite-time thermodynamic approach. Improved equations for the coefficient of performance of the systems under consideration were obtained. It was found that combined vapour compression heat pumping is more effective than combined vapour compression-absorption heat pumping for the same heating load regardless of its energy consumption being greater.