Second-law analysis and optimisation for combined Brayton and inverse Brayton cycles

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作者
Zhang, W. [1 ]
Chen, L. [1 ]
Sun, F. [1 ]
Wu, C. [2 ]
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[1] Postgraduate School, Naval University of Engineering, Wuhan, 430033, China
[2] Mechanical Engineering Department, US Naval Academy, Annapolis, MD 21402, United States
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A second-law analysis has been carried out for combined Brayton and inverse Brayton cycles. The analytical formulae of exergy balance; exergy and work output; exergy efficiency; optimal exergy efficiency and minimum exergy loss; and optimal expansion pressure of the bottom cycle are derived. The largest exergy loss location is determined. The influences of various parameters on the optimal exergy efficiency; minimum exergy loss and other performances are analysed by numerical examples. © Ambient Press Limited 2007;
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页码:15 / 26
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