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A review of chemical heat pumps, thermodynamic cycles and thermal energy storage technologies for low grade heat utilisation

Chan, C.W.; Ling-Chin, J.; Roskilly, A.P.


C.W. Chan


A major cause of energy inefficiency is a result of the generation of waste heat and the lack of suitable technologies for cost-effective utilisation of low grade heat in particular. The market potential for surplus/waste heat from industrial processes in the UK is between 10 TWh and 40 TWh, representing a significant potential resource which has remained unexploited to date. This paper reviews selected technologies suitable for utilisation of waste heat energy, with specific focus on low grade heat, including: (i) chemical heat pumps, such as adsorption and absorption cycles for cooling and heating; (ii) thermodynamic cycles, such as the organic Rankine cycle (ORC), the supercritical Rankine cycle (SRC) and the trilateral cycle (TLC), to produce electricity, with further focus on expander and zeotropic mixtures, and (iii) thermal energy storage, including sensible and latent thermal energy storages and their corresponding media to improve the performance of low grade heat energy systems.

Journal Article Type Article
Acceptance Date Jun 26, 2012
Online Publication Date Jul 4, 2012
Publication Date Jan 10, 2013
Deposit Date Nov 26, 2019
Journal Applied Thermal Engineering
Print ISSN 1359-4311
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 50
Issue 1
Pages 1257-1273
Keywords Chemical heat pump; Thermodynamic cycle; Energy storage; Low grade heat;
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