Optimal allocation of heat-exchanger area for refrigeration and air-conditioning plants

Lingen Chen, Fengrui Sun and Chih Wu

Applied Energy, 2004, vol. 77, issue 3, 339-354

Abstract: The performance of the Carnot cycle and a vapor-compression refrigeration cycle can be optimized by the choice of a heat-exchanger area between the evaporator and the condenser. In this paper, the analytical expressions for the optimal allocation of heat-exchanger area for the endoreversible and irreversible Carnot cycles with constant- and variable-temperature heat-reservoirs are derived. The optimal values for real vapor-compression cycles are obtained by numerical analysis. The results can guide the evaluation of existing refrigeration and air-conditioning plants or influence design practice for future plants.

Date: 2004
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