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Work from irreversible heat engines

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  • Grazzini, Giuseppe

Abstract

A maximum for available work is verified for a temperature difference between reservoirs and a closed cyclical system working at steady-state conditions. There is also a maximum for efficiency with internal irreversibility. The dependences of the maxima on entropy generation and variations of the maxima with temperatures in the heating and cooling fluids are described. The maximum work per cycle is estimated from an exergy balance for an open system consisting of two input and output fluids that served as the heat sources.

Suggested Citation

  • Grazzini, Giuseppe, 1991. "Work from irreversible heat engines," Energy, Elsevier, vol. 16(4), pages 747-755.
    • Handle: RePEc:eee:energy:v:16:y:1991:i:4:p:747-755
    DOI: 10.1016/0360-5442(91)90024-G
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    Cited by:

    1. Chen, Lingen & Zhu, Xiaoqin & Sun, Fengrui & Wu, Chih, 2006. "Effect of mixed heat-resistances on the optimal configuration and performance of a heat-engine cycle," Applied Energy, Elsevier, vol. 83(6), pages 537-544, June.
    2. Chen, Lingen & Zhu, Xiaoqin & Sun, Fengrui & Wu, Chih, 2004. "Optimal configuration and performance for a generalized Carnot cycle assuming the heat-transfer law Q[is proportional to]([Delta]T)m," Applied Energy, Elsevier, vol. 78(3), pages 305-313, July.
    3. Chen, Lingen & Sun, Fengrui & Wu, Chih, 2006. "Optimal configuration of a two-heat-reservoir heat-engine with heat-leak and finite thermal-capacity," Applied Energy, Elsevier, vol. 83(2), pages 71-81, February.
    4. Ruzzenenti, F. & Basosi, R., 2008. "The role of the power/efficiency misconception in the rebound effect's size debate: Does efficiency actually lead to a power enhancement?," Energy Policy, Elsevier, vol. 36(9), pages 3626-3632, September.

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