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Optimal allocation of heat-exchanger area for refrigeration and air-conditioning plants

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  • Chen, Lingen
  • Sun, Fengrui
  • Wu, Chih

Abstract

The performance of the Carnot cycle and a vapor-compression refrigeration cycle can be optimized by the choice of a heat-exchanger area between the evaporator and the condenser. In this paper, the analytical expressions for the optimal allocation of heat-exchanger area for the endoreversible and irreversible Carnot cycles with constant- and variable-temperature heat-reservoirs are derived. The optimal values for real vapor-compression cycles are obtained by numerical analysis. The results can guide the evaluation of existing refrigeration and air-conditioning plants or influence design practice for future plants.

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  • Chen, Lingen & Sun, Fengrui & Wu, Chih, 2004. "Optimal allocation of heat-exchanger area for refrigeration and air-conditioning plants," Applied Energy, Elsevier, vol. 77(3), pages 339-354, March.
    • Handle: RePEc:eee:appene:v:77:y:2004:i:3:p:339-354
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    References listed on IDEAS

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    1. Chen, Lingen & Sun, Fengrui & Chen, Wenzhen, 1995. "Optimization of the specific rate of refrigeration in combined refrigeration cycles," Energy, Elsevier, vol. 20(10), pages 1049-1053.
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    Cited by:

    1. Xu, Yun-Chao & Chen, Qun, 2013. "A theoretical global optimization method for vapor-compression refrigeration systems based on entransy theory," Energy, Elsevier, vol. 60(C), pages 464-473.
    2. Taleghani, S. Taslimi & Sorin, M. & Gaboury, S., 2021. "Thermo-economic analysis of heat-driven ejector system for cooling smelting process exhaust gas," Energy, Elsevier, vol. 220(C).
    3. Bi, Yuehong & Chen, Lingen & Sun, Fengrui, 2008. "Heating load, heating-load density and COP optimizations of an endoreversible air heat-pump," Applied Energy, Elsevier, vol. 85(7), pages 607-617, July.
    4. Qureshi, Bilal Ahmed & Zubair, Syed M., 2012. "The impact of fouling on performance of a vapor compression refrigeration system with integrated mechanical sub-cooling system," Applied Energy, Elsevier, vol. 92(C), pages 750-762.
    5. Chen, Qun & Xu, Yun-Chao & Hao, Jun-Hong, 2014. "An optimization method for gas refrigeration cycle based on the combination of both thermodynamics and entransy theory," Applied Energy, Elsevier, vol. 113(C), pages 982-989.
    6. Nunes, T.K. & Vargas, J.V.C. & Ordonez, J.C. & Shah, D. & Martinho, L.C.S., 2015. "Modeling, simulation and optimization of a vapor compression refrigeration system dynamic and steady state response," Applied Energy, Elsevier, vol. 158(C), pages 540-555.
    7. Manjunath, K. & Kaushik, S.C., 2014. "Second law thermodynamic study of heat exchangers: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 40(C), pages 348-374.
    8. Tu, Youming & Chen, Lingen & Sun, Fengrui & Wu, Chih, 2006. "Cooling load and coefficient of performance optimizations for real air-refrigerators," Applied Energy, Elsevier, vol. 83(12), pages 1289-1306, December.

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