The performance of an isothermal endoreversible chemical engine, in which the mass transfer obeys diffusive law, is analysed and optimized in this paper. The analytical relations about power output and efficiency, as well as the optimal relation between the power output and efficiency of the isothermal chemical engine are derived by using finite-time thermodynamics. Moreover, the optimal operating regions are studied. The results obtained herein can provide some new theoretical guidelines for the optimal design and development of a class of chemical engines.
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