W.Z. Chen, B. Zhu, Z. Liu, Z.Y. Chen, and F.R. Sun
Power, efficiency, optimization, heat engine, heat resistance, heatleak
This paper analyzes optimal performance of steady flow irreversible Carnot heat engines with mixed heat resistance and heat leak. The irreversible linear and nonlinear heat transfer obeys the conditions that heat absorbed Q 1 ∝ ΔT m and heat rejected Q 2 ∝ ΔT −m , where m = 1 or −1. The optimal relation between the power output and efficiency is obtained, and the principle of minimum heat transfer area is given. Some influences on the relation are discussed. It is found that the characteristics of power versus efficiency obtained here are different from that without heat leak.
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