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The thermodynamic basis of entransy and entransy dissipation

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  • Xu, Mingtian

Abstract

In the present work, the entransy and entransy dissipation are defined from the thermodynamic point of view. It is shown that the entransy is a state variable and can be employed to describe the second law of thermodynamics. For heat conduction, a principle of minimum entransy dissipation is established based on the second law of thermodynamics in terms of entransy dissipation, which leads to the governing equation of the steady Fourier heat conduction without heat source. Furthermore, we derive the expressions of the entransy dissipation in duct flows and heat exchangers from the second law of thermodynamics, which paves the way for applications of the entransy dissipation theory in heat exchanger design.

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  • Xu, Mingtian, 2011. "The thermodynamic basis of entransy and entransy dissipation," Energy, Elsevier, vol. 36(7), pages 4272-4277.
    • Handle: RePEc:eee:energy:v:36:y:2011:i:7:p:4272-4277
    DOI: 10.1016/j.energy.2011.04.016
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    References listed on IDEAS

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    Cited by:

    1. Cheng, Xuetao & Liang, Xingang, 2012. "Entransy loss in thermodynamic processes and its application," Energy, Elsevier, vol. 44(1), pages 964-972.
    2. Xu, Mingtian, 2012. "Variational principles in terms of entransy for heat transfer," Energy, Elsevier, vol. 44(1), pages 973-977.
    3. Huang, Pingnan & Pan, Minqiang, 2021. "Secondary heat transfer enhancement design of variable cross-section microchannels based on entransy analysis," Renewable and Sustainable Energy Reviews, Elsevier, vol. 141(C).
    4. Cheng, Xuetao & Liang, Xingang, 2012. "Heat-work conversion optimization of one-stream heat exchanger networks," Energy, Elsevier, vol. 47(1), pages 421-429.
    5. Lucia, Umberto, 2013. "Stationary open systems: A brief review on contemporary theories on irreversibility," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(5), pages 1051-1062.
    6. Guo, Jiangfeng & Huai, Xiulan, 2012. "Optimization design of recuperator in a chemical heat pump system based on entransy dissipation theory," Energy, Elsevier, vol. 41(1), pages 335-343.
    7. Guo, Jiangfeng & Huai, Xiulan, 2012. "The application of entransy theory in optimization design of Isopropanol–Acetone–Hydrogen chemical heat pump," Energy, Elsevier, vol. 43(1), pages 355-360.
    8. Cheng, Xuetao & Liang, Xingang, 2012. "Optimization principles for two-stream heat exchangers and two-stream heat exchanger networks," Energy, Elsevier, vol. 46(1), pages 386-392.

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