Abstract
In the present paper, the thermoeconomic optimization of an endoreversible solardriven 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.
Highlights
Within the context of finite-time/finite-size thermodynamic theory several authors have studied the optimum performance of endoreversible solar-driven heat engines [1,2,3,4]
The procedure used by Sahin and Kodal [10] was later applied by Sahin et al [11] to study the thermoeconomics of an endoreversible solar-driven heat engine in terms of the maximization of a profit function defined as the quotient of the power output and the annual investment cost
In the present work we follow the procedure by Sahin et al [8, 9, 11] to study the thermoeconomics of an endoreversible solar-driven heat engine, but by using two other objective functions, which are the ecological function [5] and the so-called efficient power [14] function, and we take the total cost as that considered by Sahin et al [11]
Summary
Within the context of finite-time/finite-size thermodynamic theory several authors have studied the optimum performance of endoreversible solar-driven heat engines [1,2,3,4]. Sahin and Kodal [10] made a thermoeconomic analysis of an endoreversible heat engine in terms of the maximization of an objective function defined as the quotient of the power output and the total cost involved in the operation of the power plant.
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