Fabrication, property characterization and thermal performance of composite phase change material plates based on tetradecanol-myristic acid binary eutectic mixture/expanded perlite and expanded vermiculite for building application

作     者：YANG Hua CHEN Wan-he KONG Xiang-fei RONG Xian 杨华;陈万河;孔祥飞;戎贤

作者机构：School of Energy and Environmental EngineeringHebei University of TechnologyTianjin 300401China School of Civil and Transportation EngineeringHebei University of TechnologyTianjin 300401China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2019年第26卷第9期

页      面：2578-2595页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project(51408184)supported by the National Natural Science Foundation of China Project(E2017202136)supported by the Natural Science Foundation of Hebei Province,China Project(BSBE2017-05)supported by Opening Funds of State Key Laboratory of Building Safety and Built Environment and National Engineering Research Center of Building Technology,China Project(QG2018-3)supported by Hebei Provincial Department of Transportation,China 

主　　题：thermal storage phase change material expanded perlite expanded vermiculite binary eutectic mixture 

摘      要：A binary eutectic mixture composed of tetradecanol(TD)and myristic acid(MA)was maximally absorbed into the microstructures of expanded perlite(EP)and expanded vermiculite(EVMT),respectively,through a self-made vacuum adsorption roller to prepare phase change material(PCM)particle(PCP).Then EP and EVMT-based composite PCM plates were respectively fabricated through a mold pressing *** thermal property,chemical stability,microstructure and durability were characterized by differential scanning calorimeter(DSC),Fourier transform infrared spectroscope(FT-IR),scanning electron microscope(SEM)and thermal cycling tests,*** results show that both PCPs have high latent heats with 110 J/g for EP-based PCP and more than 130 J/g for EVMT-based PCP,compact microstructure without PCM leakage,stable chemical property and good *** research results have proved the feasibility for the vacuum adsorption roller used in the composite PCM *** of thermal storage performance experiment indicate that the fabricated PCM plates have better thermal inertia than common building materials,and the thermal storage performance of PCM plates has nonlinearly changed with outside air velocity and temperature ***,PCM plates show a significant potential for the practical application of building thermal storage.