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Optimization study of combined refrigeration cycles driven by an engine

Author

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  • Zhao, Yang
  • Shigang, Zhang
  • Haibe, Zhao

Abstract

In order to utilize the waste heat efficiently for a gas engine-driven heat pump running in a cooling mode, this paper studies two combined absorption/compression refrigeration cycles using ammonia and water as the working fluid. By analyzing the operating characteristics of the combined cycles that make efficient use of both the work and the heat output of an engine, this paper puts forward an optimal mathematical model with an objective function of the primary-energy ratio (PER). The model has been calculated for typical cooling applications. Analysis of the results indicates that optimization can make the combined cycle fully achieve the sought-after energy saving advantage. It was also found that the PERs of the combined cycles increase considerably compared with a conventional engine-driven compression cycle working with pure ammonia. The combined cycle, with two solution circuits, is the best.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:appene:v:76:y:2003:i:4:p:379-389
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    Citations

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    Cited by:

    1. Sun, Liuli & Han, Wei & Jing, Xuye & Zheng, Danxing & Jin, Hongguang, 2013. "A power and cooling cogeneration system using mid/low-temperature heat source," Applied Energy, Elsevier, vol. 112(C), pages 886-897.
    2. 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.
    3. Karamangil, M.I. & Coskun, S. & Kaynakli, O. & Yamankaradeniz, N., 2010. "A simulation study of performance evaluation of single-stage absorption refrigeration system using conventional working fluids and alternatives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(7), pages 1969-1978, September.
    4. Hepbasli, Arif & Erbay, Zafer & Icier, Filiz & Colak, Neslihan & Hancioglu, Ebru, 2009. "A review of gas engine driven heat pumps (GEHPs) for residential and industrial applications," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(1), pages 85-99, January.
    5. 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.
    6. 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.
    7. Manzela, André Aleixo & Hanriot, Sérgio Morais & Cabezas-Gómez, Luben & Sodré, José Ricardo, 2010. "Using engine exhaust gas as energy source for an absorption refrigeration system," Applied Energy, Elsevier, vol. 87(4), pages 1141-1148, April.
    8. Gungor, Aysegul & Erbay, Zafer & Hepbasli, Arif, 2011. "Exergetic analysis and evaluation of a new application of gas engine heat pumps (GEHPs) for food drying processes," Applied Energy, Elsevier, vol. 88(3), pages 882-891, March.
    9. Bartosz Pawela & Marek Jaszczur, 2022. "Review of Gas Engine Heat Pumps," Energies, MDPI, vol. 15(13), pages 1-16, July.
    10. Han, Wei & Sun, Liuli & Zheng, Danxing & Jin, Hongguang & Ma, Sijun & Jing, Xuye, 2013. "New hybrid absorption–compression refrigeration system based on cascade use of mid-temperature waste heat," Applied Energy, Elsevier, vol. 106(C), pages 383-390.
    11. 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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