Thermoeconomic Optimum Operation Conditions of a Solar-driven Heat Engine Model

Author： Barranco-Jiménez Marco A. Sánchez-Salas Norma Rosales Marco A.

Publisher： MDPI

E-ISSN： 1099-4300|11|3|443-453

ISSN： 1099-4300

Source： Entropy, Vol.11, Iss.3, 2009-08, pp. : 443-453

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Abstract

In the present paper, the thermoeconomic optimization of an endoreversible solar-driven heat engine has been carried out by using finite-time/finite-size thermodynamic theory. In the considered heat engine model, the heat transfer from the hot reservoir to the working fluid is assumed to be the radiation type and the heat transfer to the cold reservoir is assumed the conduction type. In this work, the optimum performance and two design parameters have been investigated under three objective functions: the power output per unit total cost, the efficient power 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 three criteria of performance.