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Enhanced thermal performance of phase change material stabilized with textile-structured carbon scaffolds

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Title: Enhanced thermal performance of phase change material stabilized with textile-structured carbon scaffolds
Authors: Sheng, Nan Browse this author
Rao, Zhonghao Browse this author
Zhu, Chunyu Browse this author →KAKEN DB
Habazaki, Hiroki Browse this author →KAKEN DB
Keywords: Phase change material
Solar thermal energy storage
Heat transfer
Thermal management
Issue Date: Feb-2020
Publisher: Elsevier
Journal Title: Solar energy materials and solar cells
Volume: 205
Start Page: 110241
Publisher DOI: 10.1016/j.solmat.2019.110241
Abstract: The development of thermal conductive and porous supporting scaffolds is believed to solve the problems of poor shape-stability and low thermal conductivity of solid-liquid transition-type phase change materials (PCMs), which are promisingly used for solar thermal energy storage and management. In this paper, textile-structured carbon scaffolds with flexible shape and high porosity are produced by the direct carbonization of cotton cloth. The carbon textile with versatilely changeable shape can be employed as good conductive and supporting scaffolds for PCMs, and paraffin PCM is evaluated. The composite PCMs exhibit good shape-stability and enhanced thermal transfer properties. The composites can present anisotropically improved thermal conductivity by aligning the carbon sheets in their main yarn direction. The thermal conductivity of the composite with a carbon weight ratio of 16.5 wt% is increased to 0.99 W K-1 m(-1) from the main yarn direction and 0.68 W K-1 m(-1) from the through sheet direction, which is greatly higher than the value of paraffin (0.25 W k(-1) m(-1)), and the composite show heat capacity of 170 J g(-1). With the facile production of flexible and shapeable carbon supporting scaffold, the high thermal storage capability, good shape-stability and high heat transfer property, the composite PCM has great potential applications in solar thermal energy storage.
Rights: © <2020>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 朱 春宇

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