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

Lookup NU author(s): Dr Chian Chan, Dr Janie Ling Chin, Professor Tony Roskilly


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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. (C) 2012 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Chan CW, Ling-Chin J, Roskilly AP

Publication type: Article

Publication status: Published

Journal: Applied Thermal Engineering

Year: 2013

Volume: 50

Issue: 1

Pages: 1257-1273

Print publication date: 04/07/2012

ISSN (print): 1359-4311

ISSN (electronic): 1873-5606

Publisher: Pergamon


DOI: 10.1016/j.applthermaleng.2012.06.041


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