Title: Experimental exergy destruction analysis of an air to air heat pump operating in cooling mode

Authors: Hayati Tore; Ali Kilicarslan

Addresses: Department of Mechanical Engineering, Faculty of Engineering, Hitit University, 19030 Çevreyolu, Çorum, Turkey ' Department of Mechanical Engineering, Faculty of Engineering, Hitit University, 19030 Çevreyolu, Çorum, Turkey

Abstract: This experimental study investigates the destruction values of exergy of air source heat pump (ASHP) components with R404a refrigerant. The destruction values of exergy of the components were observed according to the atmospheric air temperatures between 24.8°C to 28.4°C. It was resulted that the destruction values of exergy in the evaporator, condenser and the compressor increased with increasing values of atmospheric air temperatures, while that of the expansion valve decreased. In particular, the highest destruction values of exergy were obtained in the compressor with values ranging from 904.2 W to 959.2 W.

Keywords: air source heat pump; cooling; destruction of exergy; R404a.

DOI: 10.1504/IJEX.2024.138088

International Journal of Exergy, 2024 Vol.43 No.4, pp.306 - 316

Received: 28 Jul 2023
Accepted: 08 Oct 2023
Published online: 29 Apr 2024 *

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