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Modelling and validation of a gas engine heat pump working with R410A for cooling applications

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

Abstract

Gas engine heat pumps play an important role in energy saving and environment protection in both cooling and heating applications. In the present work, a thermal modelling of the gas engine driven heat pump in cooling mode is performed and system main parameters such as cooling capacity, gas engine energy consumption and primary energy ratio (PER) are computed. The modelling of the gas engine heat pump includes modelling of the scroll compressor, the plate evaporator and the gas engine. Discharged refrigerant mass flow rate and compressor power represent the main output parameters of the compressor semi-empirical model. Using the discharged refrigerant mass flow rates along with the available evaporation heat transfer correlations, the system cooling capacity is deduced. Based on the present experimental data, a correlation of gas engine energy consumption as function of compressor power, engine speed and ambient air temperature is obtained. Furthermore, the gas engine heat pump model is validated by comparing experimental and simulation data. The model error percentages to predict the cooling capacity, the gas engine energy consumption and the PER are 7%, 5%, 6% respectively.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:appene:v:88:y:2011:i:12:p:4980-4988
    DOI: 10.1016/j.apenergy.2011.06.046
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    References listed on IDEAS

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    1. Welsby, P. & Devotta, S. & Diggory, P.J., 1988. "Steady- and dynamic-state simulations of heat-pumps. Part I: Literature review," Applied Energy, Elsevier, vol. 31(3), pages 189-203.
    2. Elgendy, E. & Schmidt, J., 2010. "Experimental study of gas engine driven air to water heat pump in cooling mode," Energy, Elsevier, vol. 35(6), pages 2461-2467.
    3. Sanaye, Sepehr & Chahartaghi, Mahmood, 2010. "Thermal modeling and operating tests for the gas engine-driven heat pump systems," Energy, Elsevier, vol. 35(1), pages 351-363.
    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. 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.
    6. Zhao, Yang & Shigang, Zhang & Haibe, Zhao, 2003. "Optimization study of combined refrigeration cycles driven by an engine," Applied Energy, Elsevier, vol. 76(4), pages 379-389, December.
    7. Chua, K.J. & Chou, S.K. & Yang, W.M., 2010. "Advances in heat pump systems: A review," Applied Energy, Elsevier, vol. 87(12), pages 3611-3624, December.
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    Cited by:

    1. Bartosz Pawela & Marek Jaszczur, 2022. "Review of Gas Engine Heat Pumps," Energies, MDPI, vol. 15(13), pages 1-16, July.
    2. 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.

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    Keywords

    Gas engine heat pump; Cooling applications; Modelling; R410A;
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