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Performance of an air-to-air heat pump under frosting and defrosting conditions

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  • Kaygusuz, Kamil

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°C and for discrete relative-humidity levels ranging from 65 to 80%.

Suggested Citation

  • Kaygusuz, Kamil, 1994. "Performance of an air-to-air heat pump under frosting and defrosting conditions," Applied Energy, Elsevier, vol. 48(3), pages 225-241.
    • Handle: RePEc:eee:appene:v:48:y:1994:i:3:p:225-241
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    Cited by:

    1. Wang, Fenghao & Wang, Zhihua & Zheng, Yuxin & Lin, Zhang & Hao, Pengfei & Huan, Chao & Wang, Tian, 2015. "Performance investigation of a novel frost-free air-source heat pump water heater combined with energy storage and dehumidification," Applied Energy, Elsevier, vol. 139(C), pages 212-219.
    2. Long, Zhang & Jiankai, Dong & Yiqiang, Jiang & Yang, Yao, 2014. "A novel defrosting method using heat energy dissipated by the compressor of an air source heat pump," Applied Energy, Elsevier, vol. 133(C), pages 101-111.
    3. Jang, Ji Young & Bae, Heung Hee & Lee, Seung Jun & Ha, Man Yeong, 2013. "Continuous heating of an air-source heat pump during defrosting and improvement of energy efficiency," Applied Energy, Elsevier, vol. 110(C), pages 9-16.
    4. Kim, Jaehong & Choi, Hwan-Jong & Kim, Kyung Chun, 2015. "A combined Dual Hot-Gas Bypass Defrosting method with accumulator heater for an air-to-air heat pump in cold region," Applied Energy, Elsevier, vol. 147(C), pages 344-352.

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