Thermodynamic analysis of chemical heat pumps

Journal article


Publication Details

Author(s): Obermeier J, Müller K, Arlt W
Journal: Energy
Publisher: Elsevier
Publication year: 2015
Volume: 88
Pages range: 489-496
ISSN: 0360-5442


Abstract


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.



FAU Authors / FAU Editors

Arlt, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Thermische Verfahrenstechnik
Müller, Karsten PD Dr.
Lehrstuhl für Thermische Verfahrenstechnik
Obermeier, Jonas
Lehrstuhl für Thermische Verfahrenstechnik


How to cite

APA:
Obermeier, J., Müller, K., & Arlt, W. (2015). Thermodynamic analysis of chemical heat pumps. Energy, 88, 489-496. https://dx.doi.org/10.1016/j.energy.2015.05.076

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

BibTeX: 

Last updated on 2018-10-07 at 03:23