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Low-temperature macro-encapsulated phase change material based thermal energy storage system without air void space design

Lookup NU author(s): JOEL Chiew, Professor Cheng Chin, Dr Zhiwei Gao

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Abstract

© 2018 Elsevier LtdA robust macro-encapsulation design of a low-temperature phase change material based thermal energy storage unit is presented. The developed macro-encapsulation container eliminates the need for the 20% air void space catered for the volumetric expansion of the phase change material during melting in conventional designs. A study was conducted to validate the effectiveness of the design on thermal conductivity with volumetric expansion on a 2-dimensional axis symmetrical model. The results from the numerical and experimental approaches came to a good agreement that heat transfer has improved. The thermal robustness of the proposed design was successfully demonstrated after multiple thermal cycles on the design.

Publication metadata

Author(s): Chiew J, Chin CS, Toh WD, Gao Z, Jia J

Publication type: Article

Publication status: Published

Journal: Applied Thermal Engineering

Year: 2018

Volume: 141

Pages: 928-938

Print publication date: 01/08/2018

Online publication date: 19/06/2018

Acceptance date: 19/06/2018

ISSN (print): 1359-4311

ISSN (electronic): 1873-5606

Publisher: Elsevier Ltd

URL: https://doi.org/10.1016/j.applthermaleng.2018.06.060

DOI: 10.1016/j.applthermaleng.2018.06.060

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