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Multiphase change materials for energy storage application in buildings

Darkwa, Jo; Su, Weiguang


Professor of Energy Storage Technologies

Weiguang Su


Experimental study has been carried out towards the development of a multiphase change material (MCM) by combining two fabricated microencapsulated phase change materials (MEPCM-oct and MEPCM-eic) samples. The study also covered the characterization of the developed samples for their thermal properties. For the purpose of validation the thermal properties of the developed MCM sample were compared with that of the core components. The developed MCM sample achieved a combined energy storage capacity of 186 kJ/kg with two melting temperatures of 23.4oC and 34.5oC. Even though the two melting temperatures of the MCM were slightly reduced by 0.18℃ and 0.48℃ in comparison with the MEPCM-oct and MEPCM-eic respectively, their mean energy storage capacities were in perfect agreement. The study has therefore shown that it is possible to overcome some of the scientific barriers towards the development of multiphase change materials but further investigations are needed to enhance overall thermal response.


Darkwa, J., & Su, W. (2017). Multiphase change materials for energy storage application in buildings. Journal of Thermophysics and Heat Transfer, 31(4), 791-795.

Journal Article Type Article
Acceptance Date Jan 12, 2017
Online Publication Date Apr 24, 2017
Publication Date Oct 1, 2017
Deposit Date Feb 3, 2017
Publicly Available Date Apr 24, 2017
Journal Journal of Thermophysics and Heat Transfer
Print ISSN 0887-8722
Electronic ISSN 1533-6808
Publisher American Institute of Aeronautics and Astronautics
Peer Reviewed Peer Reviewed
Volume 31
Issue 4
Pages 791-795
Book Title 14th International Energy Conversion Engineering Conference
Keywords Energy Storage Technology; Phase change materials; Thermal response; Thermal properties; Energy consumption; Thermal stability; International Organization for Standardization; Scanning electron microscopy; Thermal conductivity; Melting points
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Additional Information Copyright © 2017 by the American Institute of Aeronautics and Astronautics, Inc.


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