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Performance of a gas engine heat pump (GEHP) using R410A for heating and cooling applications

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  • Elgendy, E.
  • Schmidt, J.
  • Khalil, A.
  • Fatouh, M.

Abstract

A gas engine heat pump (GEHP) represents one of the most practicable systems which improve the overall energy utilization efficiency and reduce the operating cost for heating and cooling applications. The present work aimed at evaluating the performance of a GEHP for air-conditioning and hot water supply. In order to achieve this objective, a test facility was developed and experiments were performed over a wide range of engine speed (1200rpm–1750rpm), ambient air temperature (24.1°C–34.8°C), evaporator water flow rate (1.99m3/h–3.6m3/h) and evaporator water inlet temperature (12.2°C–23°C). Performance characteristics of the GEHP were characterized by water outlet temperatures, cooling capacity, heating capacity and primary energy ratio (PER). The results showed that the effect of evaporator water inlet temperature on the system performance is more significant than the effects of ambient air temperature and evaporator water flow rate. PER of the considered system at evaporator water inlet temperature of 23°C is higher than that one at evaporator water inlet temperature of 12.2°C by about 22%. PER of the system decreases by 16% when engine speed changes from 1200rpm to 1750rpm.

Suggested Citation

  • Elgendy, E. & Schmidt, J. & Khalil, A. & Fatouh, M., 2010. "Performance of a gas engine heat pump (GEHP) using R410A for heating and cooling applications," Energy, Elsevier, vol. 35(12), pages 4941-4948.
    • Handle: RePEc:eee:energy:v:35:y:2010:i:12:p:4941-4948
    DOI: 10.1016/j.energy.2010.08.031
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    References listed on IDEAS

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    7. Sun, Z.G., 2008. "Experimental investigation of integrated refrigeration system (IRS) with gas engine, compression chiller and absorption chiller," Energy, Elsevier, vol. 33(3), pages 431-436.
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    1. Elgendy, E. & Schmidt, J. & Khalil, A. & Fatouh, M., 2011. "Modelling and validation of a gas engine heat pump working with R410A for cooling applications," Applied Energy, Elsevier, vol. 88(12), pages 4980-4988.
    2. Amiri Rad, Ehsan & Maddah, Saeed & Mohammadi, Saeed, 2020. "Designing and optimizing a novel cogeneration system for an office building based on thermo-economic and environmental analyses," Renewable Energy, Elsevier, vol. 151(C), pages 342-354.
    3. Yang, Zhao & Wu, Xi, 2013. "Retrofits and options for the alternatives to HCFC-22," Energy, Elsevier, vol. 59(C), pages 1-21.
    4. Elgendy, E. & Schmidt, J. & Khalil, A. & Fatouh, M., 2011. "Performance of a gas engine driven heat pump for hot water supply systems," Energy, Elsevier, vol. 36(5), pages 2883-2889.
    5. Fatouh, M. & Elgendy, E., 2011. "Experimental investigation of a vapor compression heat pump used for cooling and heating applications," Energy, Elsevier, vol. 36(5), pages 2788-2795.
    6. Bartosz Pawela & Marek Jaszczur, 2022. "Review of Gas Engine Heat Pumps," Energies, MDPI, vol. 15(13), pages 1-16, July.
    7. Sanaye, Sepehr & Chahartaghi, Mahmood & Asgari, Hesam, 2013. "Dynamic modeling of Gas Engine driven Heat Pump system in cooling mode," Energy, Elsevier, vol. 55(C), pages 195-208.
    8. Gungor, Aysegul & Erbay, Zafer & Hepbasli, Arif, 2011. "Exergoeconomic analyses of a gas engine driven heat pump drier and food drying process," Applied Energy, Elsevier, vol. 88(8), pages 2677-2684, August.

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