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A novel candidate shape-stabilized phase change material for building energy conservation based on lauric acid/roasted iron tailings-expanded graphite

文献类型：期刊论文

作者Liu, Peng7; Cui, Xinglan6; Xiong, Teng4,5; Tan, Zhonghui7; Zhang, Zhikai3; Li, Haijian2; Li, Yan7; Huseien, Ghasan Fahim5; Gu, Xiaobin1,2,4
刊名CONSTRUCTION AND BUILDING MATERIALS
出版日期2024-05-17
卷号428页码:19
关键词Lauric acid Roasted iron tailings Expanded graphite SSPCM Thermal energy storage
ISSN号0950-0618
DOI10.1016/j.conbuildmat.2024.136365
通讯作者Li, Yan(liyan_qq2008@163.com) ; Gu, Xiaobin(guxb@ms.giec.ac.cn)
英文摘要This study presents the fabrication of a novel shape-stabilized phase change material (SSPCM) characterized by high thermal capacity and heat transfer efficiency. The material was composed of lauric acid (LA) embedded in roasted iron tailings (RIT) and expanded graphite (EG), utilizing a straightforward, low-cost, and direct impregnation method. The as-prepared LA/RIT-EG SSPCM underwent a comprehensive analysis of leakage tests, surface morphology, chemical compatibility, phase change properties, thermal stability, and reliability. Furthermore, the heat transfer efficiency and thermal conductivity were measured through cooling tests and a laser thermal conductivity analyzer, respectively. The LA/RIT-EG formulation demonstrated an ability to absorb 61.57 wt% LA without leakage, maintaining excellent form-stability with a mass fraction proportion of 29:9.43 for RIT and EG. DSC results revealed phase temperatures and latent heats of 42.49-46.31 degrees C and 108.1-113.1 J/ g, respectively. Compared to pure LA, LA/RIT-EG exhibited a 489.7 % increase in thermal conductivity. Additionally, heat storage and release rates were improved by 81.25 % and 88.24 %, respectively. The study elucidated the mechanism behind the enhancement in encapsulation capacity and thermal conductivity by RIT-EG, validated through specific surface area and wettability tests. Overall, the results suggest that LA/RIT-EG, characterized by high thermal capacity and heat transfer efficiency, holds promise as a potential candidate for thermal energy storage, particularly in the context of energy conservation in buildings.
WOS关键词ACID/EXPANDED PERLITE COMPOSITE ; CHANGE MATERIAL NANOCOMPOSITES ; THERMAL-PROPERTIES ; STEARIC-ACID ; STORAGE ; MICROENCAPSULATION ; FABRICATION ; DIATOMITE ; SHELL ; RELIABILITY
资助项目Guide Local for Scientific and Technological Development of Hebei Provincial Department of Science and Technology[236Z4504G] ; Science Research Project of Hebei Education Department[ZD2022053] ; West Light Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China[52274272] ; Open Project of State Key Laboratory of Environment-friendly Energy Materials[22kfhg08] ; Opening Project of State Key Laboratory of Green Building Materials[2023GBM06] ; Guangxi Scientific Research and Technology Development Plan[Guike AB23026043] ; Guangxi Scientific Research and Technology Development Plan[Guike AB22080078]
WOS研究方向Construction & Building Technology ; Engineering ; Materials Science
语种英语
WOS记录号WOS:001236869100001
出版者ELSEVIER SCI LTD
资助机构Guide Local for Scientific and Technological Development of Hebei Provincial Department of Science and Technology ; Science Research Project of Hebei Education Department ; West Light Foundation of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Open Project of State Key Laboratory of Environment-friendly Energy Materials ; Opening Project of State Key Laboratory of Green Building Materials ; Guangxi Scientific Research and Technology Development Plan
源URL[http://ir.giec.ac.cn/handle/344007/41961]  
专题中国科学院广州能源研究所
通讯作者Li, Yan; Gu, Xiaobin
作者单位1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sal, Xining 810008, Peoples R China
2.China Bldg Mat Acad, State Key Lab Green Bldg Mat, Beijing 100024, Peoples R China
3.Hebei GEO Univ, Sch Water Resources & Environm, Shijiazhuang 050031, Hebei, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
5.Natl Univ Singapore, Coll Design & Engn, Dept Built Environm, Singapore 117566, Singapore
6.GRINM Resources & Environm Technol Corp Ltd, Natl Engn Res Ctr Environm Friendly Met Producing, Beijing 100088, Peoples R China
7.Hebei GEO Univ, Hebei Key Lab Green Dev Rock & Mineral Mat Hebei P, Shijiazhuang 050031, Hebei, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Peng,Cui, Xinglan,Xiong, Teng,et al. A novel candidate shape-stabilized phase change material for building energy conservation based on lauric acid/roasted iron tailings-expanded graphite[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,428:19.
APA Liu, Peng.,Cui, Xinglan.,Xiong, Teng.,Tan, Zhonghui.,Zhang, Zhikai.,...&Gu, Xiaobin.(2024).A novel candidate shape-stabilized phase change material for building energy conservation based on lauric acid/roasted iron tailings-expanded graphite.CONSTRUCTION AND BUILDING MATERIALS,428,19.
MLA Liu, Peng,et al."A novel candidate shape-stabilized phase change material for building energy conservation based on lauric acid/roasted iron tailings-expanded graphite".CONSTRUCTION AND BUILDING MATERIALS 428(2024):19.

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来源：广州能源研究所

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