Title: Energy and exergy analyses of an air source 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: The energy and exergy analyses of a heat pump were experimentally carried out for refrigerants R134A, R404A, R407C. The effect of the environmental temperature (outdoor air temperature) between 25°C and 30°C on the coefficient of performance (COP) and exergy efficiencies of the components of the heat pump were investigated. The maximum values of exergy efficiencies were obtained by using R407C as refrigerant in the cycle. The highest value of exergy efficiency occurred in the outdoor unit as 93.23% with R407C.

Keywords: heat pump; coefficient of performance; COP; exergy destruction; exergy efficiency; R134A; R404A; R407C.

DOI: 10.1504/IJEX.2022.126822

International Journal of Exergy, 2022 Vol.39 No.4, pp.325 - 338

Received: 01 Sep 2021
Accepted: 06 Mar 2022
Published online: 08 Nov 2022 *

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