Optimization of a dual cycle cogeneration system based on a new exergetic performance criterion

Yasin Ust, Bahri Sahin and Ali Kodal

Applied Energy, 2007, vol. 84, issue 11, 1079-1091

Abstract: An ecological performance analysis for an irreversible dual-cycle cogeneration system has been performed. The objective function is called as the exergetic-performance coefficient (EPC) and defined as the ratio of total exergy output to the loss rate of availability. The general and optimal performances of the irreversible dual-cycle cogeneration system, having a finite-rate of heat transfer, heat leak and internal irreversibilities based on the EPC objective function have been investigated. Comparisons with respect to the optimal total-exergy output are also provided in order to establish the utility of the new exergetic-performance coefficient. The analyzed results of the dual-cycle cogeneration system considered, working at maximum EPC conditions, have a significant advantage in terms of entropy-generation rate and can be used for the selection of optimal design parameters.

Keywords: Ecological; optimization; Dual; cycle; Cogeneration; Performance; analysis; Exergetic; performance (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (7)

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