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Finite-Time Thermoeconomic Optimization of a Solar-Driven Heat Engine Model
Departamento de Ciencias Básicas, Escuela Superior de Cómputo del IPN, Av. Miguel Bernard Esq. Juan de Dios Bátiz U.P. Zacatenco CP 07738, D.F., Mexico
Departamento de Física, Escuela Superior de Física y Matemáticas del IPN, Edif. 9 U.P. Zacatenco P 07738, D.F., Mexico
* Author to whom correspondence should be addressed.
Received: 6 December 2010; in revised form: 22 December 2010 / Accepted: 10 January 2011 / Published: 14 January 2011
Abstract: In the present paper, the thermoeconomic optimization of an irreversible solar-driven heat engine model has been carried out by using finite-time/finite-size thermodynamic theory. In our study we take into account losses due to heat transfer across finite time temperature differences, heat leakage between thermal reservoirs and internal irreversibilities in terms of a parameter which comes from the Clausius inequality. In the considered heat engine model, the heat transfer from the hot reservoir to the working fluid is assumed to be Dulong-Petit type and the heat transfer to the cold reservoir is assumed of the Newtonian type. In this work, the optimum performance and two design parameters have been investigated under two objective functions: the power output per unit total cost and the ecological function per unit total cost. The effects of the technical and economical parameters on the thermoeconomic performance have been also discussed under the aforementioned two criteria of performance.
Keywords: thermoeconomic performance; irreversible; solar-driven heat engine; optimization
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Barranco-Jimenez, M.A.; Sanchez-Salas, N.; Angulo-Brown, F. Finite-Time Thermoeconomic Optimization of a Solar-Driven Heat Engine Model. Entropy 2011, 13, 171-183.
Barranco-Jimenez MA, Sanchez-Salas N, Angulo-Brown F. Finite-Time Thermoeconomic Optimization of a Solar-Driven Heat Engine Model. Entropy. 2011; 13(1):171-183.
Barranco-Jimenez, Marco A.; Sanchez-Salas, Norma; Angulo-Brown, Fernando. 2011. "Finite-Time Thermoeconomic Optimization of a Solar-Driven Heat Engine Model." Entropy 13, no. 1: 171-183.