Thermal compatibility of Sodium Nitrate/Expanded Perlite composite phase change materials

被引：74
作者：
Li, Ruguang [1 ,2 ]
Zhu, Jiaoqun [1 ]
Zhou, Weibing [1 ,2 ]
Cheng, Xiaomin [2 ]
Li, Yuanyuan [2 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China
[2] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
来源：
APPLIED THERMAL ENGINEERING | 2016年 / 103卷
关键词：
Expanded Perlite (EP); Sodium nitrate; Composite; Adsorption; Thermal storage; CONVECTIVE HEAT-TRANSFER; TEMPERATURE MOLTEN-SALT; ENERGY-STORAGE; GRAPHITE MATERIALS; NITRATE; KNO3/NANO3; NANO3;
D O I：
10.1016/j.applthermaleng.2016.03.108
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present work focused on the preparation and characterization of a new thermal storage material applied in thermal energy management. X-ray diffraction (XRD) results showed that Expanded Perlite (EP) has a good thermal stability varying from 300 degrees C to 900 degrees C. Morphology of scanning electron microscopy (SENT) revealed that sodium nitrate is uniformly encapsulated and embedded in the three-dimensional network structure of EP. Fourier transform infrared (FT-IR) spectroscopy indicated that the EP is physically combined with the nitrate salt Thermo-gravimetric analysis (TGA) and differential Scanning Calorimeter (DSC) indicated that the composites have good thermal stability. The adsorption capacity of loose EP was 213.21%. When the EP mass fraction varying from 10% to 60%, thermal conductivity decreased with the content of EP increased, and the highest thermal conductivity is 1.14 W (m K)(-1) at 300 degrees C. SEM revealed the network structure of EP provided thermal conduction paths which enhanced the thermal conductivity of the composites. All results indicated that EP could be a good adsorption material to be applied in the thermal storage fields. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：452 / 458
页数：7
相关论文
共 23 条
[1]   KNO3/NaNO3 - Graphite materials for thermal energy storage at high temperature: Part I. - Elaboration methods and thermal properties [J].
Acem, Zoubir ;
Lopez, Jerome ;
Del Barrio, Elena Palomo .
APPLIED THERMAL ENGINEERING, 2010, 30 (13) :1580-1585
[2]   Corrosion of stainless steels and low-Cr steel in molten Ca(NO3)2-NaNO3-KNO3 eutectic salt for direct energy storage in CSP plants [J].
Fernandez, A. G. ;
Galleguillos, H. ;
Fuentealba, E. ;
Perez, F. J. .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2015, 141 :7-13
[3]   Adsorption of Ag, Cu and Hg from aqueous solutions using expanded perlite [J].
Ghassabzadeh, Hamid ;
Mohadespour, Ahmad ;
Torab-Mostaedi, Meisam ;
Zaheri, Parisa ;
Maragheh, Mohammad Ghannadi ;
Taheri, Hossein .
JOURNAL OF HAZARDOUS MATERIALS, 2010, 177 (1-3) :950-955
[4]   Effect of heating rates and composition on the thermal decomposition of nitrate based molten salts [J].
Gimenez, P. ;
Fereres, S. .
INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS, SOLARPACES 2014, 2015, 69 :654-662
[5]   Performance enhancement in latent heat thermal storage system: A review [J].
Jegadheeswaran, S. ;
Pohekar, Sanjay D. .
RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2009, 13 (09) :2225-2244
[6]   Selection of materials for high temperature latent heat energy storage [J].
Khare, Sameer ;
Dell'Amico, Mark ;
Knight, Chris ;
McGarry, Scott .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2012, 107 :20-27
[7]   Characterization and thermal performance of nitrate mixture/SiC ceramic honeycomb composite phase change materials for thermal energy storage [J].
Li, Yong ;
Guo, Bei ;
Huang, Guanfei ;
Kubo, Shuichi ;
Shu, Pengcheng .
APPLIED THERMAL ENGINEERING, 2015, 81 :193-197
[8]   Numerical study on the thermal behavior of phase change materials (PCMs) embedded in porous metal matrix [J].
Li, Zhuo ;
Wu, Zhi-Gen .
SOLAR ENERGY, 2014, 99 :172-184
[9]   KNO3/NaNO3 - Graphite materials for thermal energy storage at high temperature: Part II. - Phase transition properties [J].
Lopez, Jerome ;
Acem, Zoubir ;
Del Barrio, Elena Palomo .
APPLIED THERMAL ENGINEERING, 2010, 30 (13) :1586-1593
[10]   Convective heat transfer of high temperature molten salt in a vertical annular duct with cooled wall [J].
Lu, Jianfeng ;
He, Shiquan ;
Ding, Jing ;
Yang, Jianping ;
Liang, Junming .
APPLIED THERMAL ENGINEERING, 2014, 73 (02) :1519-1524
123