Thermodynamic analysis of chemical heat pumps

Obermeier J, Müller K, Arlt W (2015)

Publication Status: Published

Publication Type: Journal article

Publication year: 2015


Publisher: Elsevier

Book Volume: 88

Pages Range: 489-496

DOI: 10.1016/


Thermal energy storages and heat pump units represent an important part of high efficient renewable energy systems. By using thermally driven, reversible chemical reactions a combination of thermal energy storage and heat pump can be realized. The influences of thermophysical properties of the involved components on the efficiency of a heat pump cycle is analysed and the relevance of the thermodynamic driving force is worked out. In general, the behaviour of energetic and exergetic efficiency is contrary. In a real cycle, higher enthalpies of reaction decrease the energetic efficiency but increase the exergetic efficiency. Higher enthalpies of reaction allow for lower offsets from equilibrium state for a default thermodynamic driving force of the reaction. (C) 2015 Elsevier Ltd. All rights reserved.

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Obermeier, J., Müller, K., & Arlt, W. (2015). Thermodynamic analysis of chemical heat pumps. Energy, 88, 489-496.


Obermeier, Jonas, Karsten Müller, and Wolfgang Arlt. "Thermodynamic analysis of chemical heat pumps." Energy 88 (2015): 489-496.

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