PERFORMANCE OF AN AIR-TO-AIR HEAT-PUMP UNDER FROSTING AND DEFROSTING CONDITIONS

KAYGUSUZ K.

APPLIED ENERGY, vol.48, no.3, pp.225-241, 1994 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 3
  • Publication Date: 1994
  • Doi Number: 10.1016/0306-2619(94)90012-4
  • Journal Name: APPLIED ENERGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.225-241
  • Karadeniz Technical University Affiliated: No

Abstract

In order to investigate the performance of air-to-air heat pumps for residential heating in the Black Sea region of Turkey, an experimental set-up was constructed. An electrically driven air-to-air heat pump was used for heating a laboratory building with a floor of 75 m2. In this study, a high-efficiency air-to-air residential heat pump was instrumented and tested in the heating mode under laboratory conditions. The coefficient of performance and heating capacity of the system were measured during steady-state, dehumidifying, and frosting/defrosting conditions. The study encompassed an evaluation of system and component performance for ambient temperature levels between 10 and -4.0-degrees-C and for discrete relative-humidity levels ranging from 65 to 80%.