Abstract
In this paper, a generalized irreversible heat pump driven by steam turbine cycle model was established by taking account of the heat resistances, heat leak and irreversibility due to the internal dissipation of the working substance. The heat transfer between the heat reservoir and the working substance is assumed to obey the linear (Newtonian) heat transfer law, and the overall heat transfer surface area of the assumed to be constant. The fundamental optimal relations between the heat load, the thermal coefficient of the system and the temperature difference of the evaporator are obtained. Moreover, the effects of the cycle parameters on the characteristics of the cycle are studied by numerical example. The results obtained herein have realistic significance and may provide some theoretical guidance for the performance improvements and optimizations of heat pumps driven by steam turbine.
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