Performance Analysis of the Absorption Heat Pump Systems Based on the Entransy Theory

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Abstract:

The entransy efficiency expression of the absorption heat pump systems was defined in this paper, combined with the concept of the entransy and based on the model of a four temperature level absorption heat pump cycle. The relationship between the heating coefficient of the absorption heat pump and heating rate with the changes of the entransy efficiency was deduced. Numerical example was introduced to analysis the impactions of the entransy efficiency on the absorption heat pump systems. The results show that the heating coefficient increases with the growth of entransy efficiency, the entransy efficiency and the heating rate becomes larger when the value u gets larger, but the heating coefficient gets smaller. The heating rate decreases with the growth of the heating coefficient, the value u has more impaction on the heating rate when the heating coefficient remains constant.

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2179-2183

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July 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Chen L, Qin X, Sun F, Wu C. Irreversible absorption heat pump and its optimal performance. Appl Energy2005; 81(1): 55–71.

DOI: 10.1016/j.apenergy.2004.05.001

Google Scholar

[2] Yuewu Huang, Dexing Sun. Performance optimization for an irreversible four-temperature-level absorption heat pump, International Journal of Thermal Sciences2008, 47: 479–485.

DOI: 10.1016/j.ijthermalsci.2007.03.013

Google Scholar

[3] GUO Zengyuan, ZHU Hongye, LIANG Xingang. Entransy-a Physical Describing Heat Transfer Ability[J]. International Journal of Heat and Mass Transfer2007, 50: 2345-2556.

DOI: 10.1016/j.ijheatmasstransfer.2006.11.034

Google Scholar

[4] Fang Yuan, Qun Chen. A global optimization method for evaporative cooling systems based on the entransy theory[J]. Energy2012, 42: 181-191.

DOI: 10.1016/j.energy.2012.03.070

Google Scholar

[5] Yun-Chao Xu, Qun Chen. An entransy dissipation-based method for global optimization of district heating networks[J]. Energy and Buildings2012, 48: 50-60.

DOI: 10.1016/j.enbuild.2012.01.008

Google Scholar

[6] Xuetao Cheng, Qinzhao Zhang, Xingang Liang. Analyses of entransy dissipation, entropy generation and entransy-dissipation-based thermal resistance on heat exchanger optimization[J]. Applied Thermal Engineering2012, 38: 31-39.

DOI: 10.1016/j.applthermaleng.2012.01.017

Google Scholar