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	Preparation and thermal characterization of sodium acetate trihydrate/expanded graphite composite phase change material
	Gu, Xiaobin ; Qin, Shan ; Wu, Xiang ; Li, Yuan ; Liu, Yingxin
	2016
关键词	Sodium acetate trihydrate Expanded graphite Composite phase change material Thermal energy storage HEAT-TRANSFER ANALYSIS ENERGY-STORAGE SALTS/EXPANDED GRAPHITE PCM CONDUCTIVITY SYSTEM ENHANCEMENT PROPERTY FOAM
英文摘要	The sodium acetate trihydrate (SAT)/expanded graphite (EG) composite phase change material (PCM) was firstly prepared by absorbing liquid SAT into a porous network of EG, in which SAT acted as the PCM. EG prepared at microwave irradiation power of 800 W for 30 s with maximum volumes has the largest sorption capacity for SAT. At the mass fraction of SAT < 95 %, SAT uniformly disperse in the pores of EG without liquid leakage evidenced from scanning electron microscopy characterization. X-ray diffraction results further show that PCM is just a combination between SAT and EG without any chemical reaction. Differential scanning calorimeter measurements indicate that the melting temperature and latent heat of the composite PCM are 59.5 A degrees C and 202 J g(-1), respectively, close to those of pure SAT. The thermal conductivity of the composite PCM can be as high as 1.589 W m(-1) K-1.The form-stable SAT/EG composite with SAT mass fraction of 95 % has great potential in thermal energy storage due to its moderate melting point, significant latent heat storage capacity, form-stable property, direct usability without need for an extra storage container, and high thermal conductivity.; SCI(E); CPCI-S(ISTP); sqin@pku.edu.cn; 2; 831-838; 125
语种	英语
出处	MEDICTA Conference
DOI标识	10.1007/s10973-016-5444-4
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491789]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Gu, Xiaobin,Qin, Shan,Wu, Xiang,et al. Preparation and thermal characterization of sodium acetate trihydrate/expanded graphite composite phase change material. 2016-01-01.

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