Finite-time thermodynamics: Realizability domains of thermodynamic systems and P. Salamon’s problem of effi ciency corresponding to maximum power output of the system
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Abstract
The paper analyses performance boundaries of systems converting the heat energy into the mechanical or separation work. Authors approach this problem from the view-point of the fi nite-time thermodynamics. Using thermodynamic balance equations, authors provide the algorithm for calculation of realizability domain for such systems. The paper shows that the performance of these systems is the upper bounded function of the heat fl ux, assuming that heat and mass transfer coeffi cients are given. Authors present suffi cient conditions under which the effi ciency (specifi c heat fl ux per unit of the useful fl ux) of the system does not depend on kinetic coeffi cients when operating in the maximum performance mode. The paper shows how to use these conditions to optimally choose the separation order for multicomponent distillation.
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