Abstract

A stationary irreversible regenerative Stirling cycle model, with two sources of irreversibilities (finite rate of heat transfers and heat leak), is analyzed. The aim of this work is to obtain the criterion of partial optimization presented in [3]. Since with this criterion, the optimal relations for the allocation and effectiveness of the heat exchangers of Carnot-like power plant are obtained; when two design rules are applied, alternatively: internal thermal conductance fixed, or areas fixed. These optimal relations are the same for maximum specific power and efficiency. As an instance, after the substitution of these optimal values in the specific power and efficiency, the maximum specific power and efficiency are obtained. Then the maximum efficiency and specific power are compared, and it is found that the maximum efficiency is greater than maximum specific power for both design rules.

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