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Thermoeconomic isolation and essergy analysis

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  • Evans, Robert B.

Abstract

Any thermal system component may be regarded as “thermoeconomically isolated” from other system compondnts when its economic interactions are completely described by a set of single numerical values of stable Lagrange multipliers for each interaction. Thermoeconomic isolation in this sense is a necessary and sufficient condition in optimizing a component by itself, without determining the resulting economic impact on the rest of the system yet still allowing overall optimization of the system as a whole. For any multicomponent system with variable energy values, it appears that thermoeconomic isolation of each component can be achieved only by expressing interactions in terms of the quantity “essergy”, or essential, useful energy. Abbreviated examples of essergy analysis and optimization are given for feedwater heaters and condensers in power plants and evaporators and condensers in refrigeration systems.

Suggested Citation

  • Evans, Robert B., 1980. "Thermoeconomic isolation and essergy analysis," Energy, Elsevier, vol. 5(8), pages 804-821.
    • Handle: RePEc:eee:energy:v:5:y:1980:i:8:p:804-821
    DOI: 10.1016/0360-5442(80)90098-5
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    Cited by:

    1. Rosseto de Faria, Pedro & Aiolfi Barone, Marcelo & Guedes dos Santos, Rodrigo & Santos, José Joaquim C.S., 2023. "The environment as a thermoeconomic diagram device for the systematic and automatic waste and environmental cost internalization in thermal systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    2. Kanbur, Baris Burak & Xiang, Liming & Dubey, Swapnil & Choo, Fook Hoong & Duan, Fei, 2017. "Cold utilization systems of LNG: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 1171-1188.
    3. Abusoglu, Aysegul & Kanoglu, Mehmet, 2009. "Exergoeconomic analysis and optimization of combined heat and power production: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 13(9), pages 2295-2308, December.
    4. Cafaro, S. & Napoli, L. & Traverso, A. & Massardo, A.F., 2010. "Monitoring of the thermoeconomic performance in an actual combined cycle power plant bottoming cycle," Energy, Elsevier, vol. 35(2), pages 902-910.
    5. Xiong, Jie & Zhao, Haibo & Zhang, Chao & Zheng, Chuguang & Luh, Peter B., 2012. "Thermoeconomic operation optimization of a coal-fired power plant," Energy, Elsevier, vol. 42(1), pages 486-496.

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