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Exploring heating performance of gas engine heat pump with heat recovery

  • Materials, Metallurgy, Chemical and Environmental Engineering
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Abstract

In order to evaluate the heating performance of gas engine heat pump (GEHP) for air-conditioning and hot water supply, a test facility was developed and experiments were performed over a wide range of engine speed (1400-2600 r/min), ambient air temperature (2.4-17.8 °C) and condenser water inlet temperature (30-50 °C). The results show that as engine speed increases from 1400 r/min to 2600 r/min, the total heating capacity and energy consumption increase by about 30% and 89%, respectively; while the heat pump coefficient of performance (COP) and system primary energy ratio (PER) decrease by 44% and 31%, respectively. With the increase of ambient air temperature from 2.4 °C to 17.8 °C, the heat pump COP and system PER increase by 32% and 19%, respectively. Moreover, the heat pump COP and system PER decrease by 27% and 15%, respectively, when the condenser water inlet temperature changes from 30 °C to 50 °C. So, it is obvious that the effect of engine speed on the performance is more significant than the effects of ambient air temperature and condenser water inlet temperature.

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Authors and Affiliations

  1. School of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin, 300384, China

    Fu-jiang Dong  (董付江), Feng-guo Liu  (刘凤国) & Dong-fang Zhao  (赵冬芳)

  2. School of Architecture, Tsinghua University, Beijing, 100084, China

    Xian-ting Li  (李先庭)

  3. School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China

    Xue-yi You  (尤学一)

Authors
  1. Fu-jiang Dong  (董付江)
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  2. Feng-guo Liu  (刘凤国)
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  3. Xian-ting Li  (李先庭)
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  4. Xue-yi You  (尤学一)
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  5. Dong-fang Zhao  (赵冬芳)
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Corresponding author

Correspondence to Feng-guo Liu  (刘凤国).

Additional information

Foundation item: Project(hx2013-87) supported by the Qingdao Economic and Technology Development Zone Haier Water-Heater Co. Ltd., China

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Dong, Fj., Liu, Fg., Li, Xt. et al. Exploring heating performance of gas engine heat pump with heat recovery. J. Cent. South Univ. 23, 1931–1936 (2016). https://doi.org/10.1007/s11771-016-3249-z

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  • DOI: https://doi.org/10.1007/s11771-016-3249-z

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