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Optimal Allocation of Heat Exchanger Area for Vapor-Compression Heat Pump Plants

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Abstract:

In order to optimize coefficient of heat pump, the finite time thermodynamic optimization theory is applied in this paper. By introducing area ratio of the condenser and evaporator, the analytical expressions for the optimal allocation of heat exchanger area for the irreversible Carnot heat pump with variable-temperature heat reservoirs are derived. For illustration, a real vapor compression heat pump example is utilized. Empirical results show that the optimal values for real vapor-compression heat pump cycles are obtained when area ratio is equal to 0.916. The results can guide the evaluation of existing heat pump plants or influence design practice for future plants.The results can guide the evaluation of existing heat pump plants or influence design practice for future plants.

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Periodical:

Advanced Materials Research (Volumes 433-440)

Pages:

817-822

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.433-440.817

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Online since:

January 2012

Authors:

Xiao Ming Li, Zhi Qiang Yang, Xiu Ji Shi, Yue Shi, Qiang Zhang

Keywords:

Heat Pump, Heat-Exchanger Area, Optimal Allocation

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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