Journal
RENEWABLE ENERGY
Volume 182, Issue -, Pages 483-493Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2021.09.115
Keywords
Net-packed method; Thermochemical energy storage; Thermal performance enhancement
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This paper investigates the use of copper mesh for enhancing the thermal performance of thermochemical reactors, showing that the copper mesh method has better thermal performance, including higher temperature rise and lower pressure drop.
Thermochemical energy storage (TCES) is proving to be a promising option for residential energy storage applications. Many studies have indicated that the pressure drop and heat and mass transfer efficiency of the reactor are two key determinants with TCES technologies. In this paper, net-packed method is used to carry out thermal performance enhancement study for a thermochemical reactor. Compared with and the without net packed methods, copper mesh shows better thermal performance. The copper mesh method of zeolite achieved maximum temperature rise of 38.6 degrees C, which is 4.4 degrees C and 2.3 degrees C higher than that of the non-packed and aluminum mesh, respectively. The pressure drop is reduced by 28.1% and higher water adsorption has been realized. In addition, the energy storage density of 784.4 kJ/kg and thermal efficiency of 38.2% are ob-tained with the copper mesh. These are 1.6 and 2.4 times the results of the non-packed tests respectively. Crown Copyright (c) 2021 Published by Elsevier Ltd. All rights reserved.
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