Encapsulation of high-temperature inorganic phase change materials using graphite as heat transfer enhancer

doi:10.1016/j.renene.2018.09.107

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Encapsulation of high-temperature inorganic phase change materials using graphite as heat transfer enhancer
	Zhong, YJ ; Zhao, BC ; Lin, J ; Zhang, F ; Wang, HR ; Zhu, ZY ; Dai, ZM
刊名	RENEWABLE ENERGY
	2019
卷号	133 期号:-页码:240—247
关键词	THERMAL-ENERGY STORAGE CONDUCTIVITY ENHANCEMENT COMPOSITE SYSTEM SALT
ISSN号	0960-1481
DOI	10.1016/j.renene.2018.09.107
文献子类	期刊论文
英文摘要	A quasi-isostatic pressing technique for encapsulating spherical high-temperature inorganic phase change materials (PCMs) was presented in this work. To enhance the thermal conductivity of PCMs, graphite powder was dispersed into the PCM pellets. Meanwhile, cellulose particles, as sacrificial particles, were mixed with the PCM pellets to relieve the volumetric expansion of the PCMs during the phase change process. The effects of the latent heat, thermal conductivity, and thermal expansion behavior of the PCM/graphite capsule were investigated. The PCM capsules were able to work at temperatures up to 900 degrees C, including undergoing a solid-liquid phase change at 803 degrees C with a latent heat of 159.6 J g(-1), and survived more than 300 thermal cycles as thermal energy storage devices. The thermal performance of the PCM capsules between 500 and 900 degrees C was numerically investigated using a modified one-dimensional (1-D) enthalpy-based model. The results indicated that the average heat transfer of the PCM capsules with graphite-dispersed core was significantly elevated during both the charging (by 92.5% for 99% charge) and discharging (by 168.4% for 99% discharge) processes, compared to the pure core PCMs. (C) 2018 Elsevier Ltd. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31596]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Ctr Thorium Molten Salt Reactor Syst, Shanghai 201800, Peoples R China; 2.Shanghai Jiao Tong Univ, Inst Refrigerat & Cryogen, Shanghai 200240, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhong, YJ,Zhao, BC,Lin, J,et al. Encapsulation of high-temperature inorganic phase change materials using graphite as heat transfer enhancer[J]. RENEWABLE ENERGY,2019,133(-):240—247.
APA	Zhong, YJ.,Zhao, BC.,Lin, J.,Zhang, F.,Wang, HR.,...&Dai, ZM.(2019).Encapsulation of high-temperature inorganic phase change materials using graphite as heat transfer enhancer.RENEWABLE ENERGY,133(-),240—247.
MLA	Zhong, YJ,et al."Encapsulation of high-temperature inorganic phase change materials using graphite as heat transfer enhancer".RENEWABLE ENERGY 133.-(2019):240—247.