Abstract
In this paper, the power density (defined as the ratio of the poweroutput to the maximum specific volume in the cycle) is taken as the objectivefor performance optimizations of an endoreversible closed Brayton cyclecoupled to constant-temperature heat reservoirs in the viewpoint offinite-time thermodynamics (FTT) or entropy generation minimization (EGM). Theoptimum heat conductance distribution corresponding to the optimum powerdensity of the hot- and cold-side heat exchangers for the fixed heatexchanger inventory is analysed using numerical examples. The influence ofsome design parameters on the optimum heat conductance distribution and themaximum power density and the optimum pressure ratio corresponding to themaximum power density are provided. The power plant design with optimizationleads to higher efficiency and smaller size.}\\fnm{3}{Author to whom correspondence should be addressed.
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