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Indexed by:
Article
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First Author:
Na Zhu
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Co-author:
Xingkun Li,Pingfang Hu,Fei Lei,Shen Wei,Wentao Wang
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Journal:
Energy
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Included Journals:
SCI
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Affiliation of Author(s):
Huazhong University of Science and Technology
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Place of Publication:
Denmark
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Discipline:
Engineering
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First-Level Discipline:
Civil Engineering
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Funded by:
National Natural Science Foundation of China (NSFC)
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Document Type:
J
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Volume:
239
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Page Number:
122433
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ISSN No.:
0360-5442
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Key Words:
Phase change humidity control material; Hygrothermal; Finite solution algorithms; Energy consumption
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DOI number:
10.1016/j.energy.2021.122433
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Date of Publication:
2022-01-15
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Impact Factor:
8.857
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Teaching and Research Group:
建筑环境与能源应用工程系
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Abstract:
In this study, a composite double-layer wallboard with shape-stabilized phase change humidity control materials (PCHCM) has been proposed for building usage. This novel PCHCM can absorb/release both heat and moisture to moderate indoor hygrothermal environment. Based on a numerical analysis in an office building in Wuhan (30.52 degrees N, 114.32 degrees E), China, the effects of PCHCM on both building energy consumption and indoor hygrothermal environment has been investigated. Firstly, a simulation model has been developed for the building integrated with PCHCM wallboards in EnergyPlus, combining both heat and moisture transfer finite solution algorithms. After a validation of the model, both heat and moisture transfer characteristics of the proposed composite wallboards were simulated, and its effects on indoor temperature, humidity and building energy consumption were analyzed. The simulation results showed that this novel PCHCM wallboard can effectively improve indoor hygrothermal environment, with reduced energy consumption by about 8.3% in summer and 24.9% in winter, comparing to the actually used materials in the case study building.
