Effect of particle size on the thermal performance of NaNO3/SiO2/C composite phase-change materials

IMR OpenIR

	Effect of particle size on the thermal performance of NaNO3/SiO2/C composite phase-change materials
其他题名	Effect of particle size on the thermal performance of NaNO_3 /SiO_2 /C composite phase-change materials
	Liu Liang 1; Wang Liqiong 1; Ge Weichun 3; Ge Yanfeng 3; Huang Yun 2
	2019
发表期刊	PARTICUOLOGY
ISSN	1674-2001
卷号	44 页码:169-175
摘要	Storage of thermal energy is a key technology for energy conservation and application of renewable energy sources. In this paper, the thermal performance of inorganic composite phase-change materials (PCMs; NaNO3/SiO2/C) is studied under extreme thermal conditions and the effect of raw particle size is examined. We designed a thermal shock test platform with a diffusive combustion system and in-situ infrared thermal imaging. The influences of the heat flux magnitude and exposure time on the performance of the PCMs were examined under vertical thermal shock conditions. Leakage of molten salt in the composite PCMs was observed as the heat flux reached a threshold point. The morphology and thermal properties were characterized by ex-situ SEM, XRD, DSC, and BET. Raw particles with sizes in the range of 105-500 mu m were used to synthesize the composite material and examine its role in thermal shock behavior. Our experiments showed that deterioration of the thermal storage density was slowed as the particle size was increased. This work provides useful guidance for improving the anti-thermal shock ability of future material designs. (C) 2018 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
其他摘要	Storage of thermal energy is a key technology for energy conservation and application of renewable energy sources. In this paper, the thermal performance of inorganic composite phase-change materials(PCMs; NaNO_3 /SiO_2 /C) is studied under extreme thermal conditions and the effect of raw particle size is examined. We designed a thermal shock test platform with a diffusive combustion system and in-situ infrared thermal imaging. The influences of the heat flux magnitude and exposure time on the performance of the PCMs were examined under vertical thermal shock conditions. Leakage of molten salt in the composite PCMs was observed as the heat flux reached a threshold point. The morphology and thermal properties were characterized by ex-situ SEM, XRD, DSC, and BET. Raw particles with sizes in the range of 105–500 μm were used to synthesize the composite material and examine its role in thermal shock behavior. Our experiments showed that deterioration of the thermal storage density was slowed as the particle size was increased. This work provides useful guidance for improving the anti-thermal shock ability of future material designs.
关键词	JET DIFFUSION FLAMES ENERGY STORAGE SHAPES Thermal storage Phase change material Particle size Thermal shock Decomposition temperature
收录类别	CSCD
语种	英语
资助项目	[National Key Technologies R&D Program of China] ; [Strategic Priority Research Program of Chinese Academy of Sciences] ; [National Natural Science Foundation of China] ; [Jiangsu Province Scientific program]
CSCD记录号	CSCD:6488254
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/148921
专题	中国科学院金属研究所
作者单位	1.Beijing Institute Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China 2.中国科学院 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Liu Liang,Wang Liqiong,Ge Weichun,et al. Effect of particle size on the thermal performance of NaNO3/SiO2/C composite phase-change materials[J]. PARTICUOLOGY,2019,44:169-175.
APA	Liu Liang,Wang Liqiong,Ge Weichun,Ge Yanfeng,&Huang Yun.(2019).Effect of particle size on the thermal performance of NaNO3/SiO2/C composite phase-change materials.PARTICUOLOGY,44,169-175.
MLA	Liu Liang,et al."Effect of particle size on the thermal performance of NaNO3/SiO2/C composite phase-change materials".PARTICUOLOGY 44(2019):169-175.