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Multi-objective optimization of heat exchanger based on entransy dissipation theory in an irreversible Brayton cycle system

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  • Guo, Jiangfeng
  • Huai, Xiulan
  • Li, Xunfeng
  • Cai, Jun
  • Wang, Yongwei

Abstract

A multi-objective optimization of main heat exchanger in a regenerative Brayton cycle system is carried out based on entransy dissipation. The best trade-off between the entransy dissipation numbers caused by heat transfer and fluid friction is achieved in the Pareto optimal solutions, the decrease of entransy dissipation related to heat transfer inevitably leads to the increase of entransy dissipation due to fluid friction, and vice versa. The entransy dissipation due to heat transfer rather than that due to fluid friction plays a decisive role in the net work output. The Pareto optimal schemes are widely superior to the random design schemes at both component and system levels. The diversity of Pareto design schemes is very convenient for users to choose the most appropriate design scheme according to the practical needs.

Suggested Citation

  • Guo, Jiangfeng & Huai, Xiulan & Li, Xunfeng & Cai, Jun & Wang, Yongwei, 2013. "Multi-objective optimization of heat exchanger based on entransy dissipation theory in an irreversible Brayton cycle system," Energy, Elsevier, vol. 63(C), pages 95-102.
    • Handle: RePEc:eee:energy:v:63:y:2013:i:c:p:95-102
    DOI: 10.1016/j.energy.2013.10.058
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    References listed on IDEAS

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    1. Bejan, Adrian, 1980. "Second law analysis in heat transfer," Energy, Elsevier, vol. 5(8), pages 720-732.
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    Cited by:

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    8. Kazimierski, Zbyszko & Wojewoda, Jerzy, 2014. "Heat exchanger operation in the externally heated air valve engine with separated settling chambers," Energy, Elsevier, vol. 74(C), pages 675-681.
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