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  • Title: Entropy generation and unified optimization of Carnot-like and low-dissipation refrigerators.
    Author: Gonzalez-Ayala J, Medina A, Roco JMM, Hernández AC.
    Journal: Phys Rev E; 2018 Feb; 97(2-1):022139. PubMed ID: 29548120.
    Abstract:
    The connection between Carnot-like and low-dissipation refrigerators is proposed by means of their entropy generation and the optimization of two unified, compromise-based figures of merit. Their optimization shows that only a limited set of heat transfer laws in the Carnot-like model are compatible with the results stemming from the low-dissipation approximation, even though there is an agreement of the related physical spaces of variables. A comparison between two operation regimes and relations among entropy generation, efficiency, cooling power. and power input are obtained, with emphasis on the role of dissipation symmetries. The results extend previous findings for heat engines at maximum power conditions.
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