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10.3390/ma14010139
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Article

Design of Eutectic Hydrated Salt Composite Phase Change Material with Cement for Thermal Energy Regulation of Buildings

by
Niuniu Wu
,
Lijie Liu
,
Zhiwei Yang
,
Yifan Wu
and
Jinhong Li
*
Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Materials 2021, 14(1), 139; https://doi.org/10.3390/ma14010139
Submission received: 16 November 2020 / Revised: 25 December 2020 / Accepted: 25 December 2020 / Published: 30 December 2020
(This article belongs to the Special Issue Advanced Materials for Thermal Energy Storage)
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Abstract

An energy-efficient eutectic hydrated salt phase change material based on sodium carbonate decahydrate and disodium hydrogen phosphate dodecahydrate (SD) was prepared. Then, SD was encapsulated into expanded graphite (EG) to produce form-stable composite phase change materials (SD/E), which indicated a positive effect on preventing the leakage of SD, decreasing the supercooling and improving the thermal conductivity. SD/E was further tested for thermal efficiency by simulating the indoor environment with a house-like model which was composed of SD/E and magnesium oxychloride cement. The results showed an excellent thermal insulation effect. This exciting porous composite phase shift material reveals possible architectural applications because of the attractive thermos-physical properties of SD/E.
Keywords: eutectic hydrated salt; phase change materials; magnesium oxychloride cement; thermal energy storage eutectic hydrated salt; phase change materials; magnesium oxychloride cement; thermal energy storage
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MDPI and ACS Style

Wu, N.; Liu, L.; Yang, Z.; Wu, Y.; Li, J. Design of Eutectic Hydrated Salt Composite Phase Change Material with Cement for Thermal Energy Regulation of Buildings. Materials 2021, 14, 139. https://doi.org/10.3390/ma14010139

AMA Style

Wu N, Liu L, Yang Z, Wu Y, Li J. Design of Eutectic Hydrated Salt Composite Phase Change Material with Cement for Thermal Energy Regulation of Buildings. Materials. 2021; 14(1):139. https://doi.org/10.3390/ma14010139

Chicago/Turabian Style

Wu, Niuniu, Lijie Liu, Zhiwei Yang, Yifan Wu, and Jinhong Li. 2021. "Design of Eutectic Hydrated Salt Composite Phase Change Material with Cement for Thermal Energy Regulation of Buildings" Materials 14, no. 1: 139. https://doi.org/10.3390/ma14010139

APA Style

Wu, N., Liu, L., Yang, Z., Wu, Y., & Li, J. (2021). Design of Eutectic Hydrated Salt Composite Phase Change Material with Cement for Thermal Energy Regulation of Buildings. Materials, 14(1), 139. https://doi.org/10.3390/ma14010139

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