人工晶体学报2017，Vol.46Issue(12)：2374-2379,2385,7.
不同载体的Na2SO4·10H2O基定形相变材料的制备和热性能研究
Preparation and Thermal Properties of Shape-stabilized Na2SO4·10H2O Composite PCM with Different Carriers
摘要
Abstract
Energy conservation has great significance in today's society.In this paper, Na2SO4 · 10H2O was selected as a phase change material ( PCM ) which was encapsulated into different carriers , such as SiO2 aerogels, X-type molecular sieves, expanded perlite, activated carbon and diatomite by using direct impregnation method for preventing the leakage and guaranteeing the long-term thermal stability during the phase transition .Test results of SEM , DSC and XRD show that the percentage of PCM in the different adsorbents is 80.0％,82.2％,76.9％,89.2％ and 60.6％ respectively after saturation adsorption . Compared with other carriers the expanded perlite ( EP ) is the most cost-effective carrier material in terms of thermal properties , mechanical properties and cost .The Na2SO4 · 10H2O/EP composite phase change material was further detected for the thermal cycle experiment .After 100 cycles, its calorific value loss is less than 15％, and the undercooling is within 10℃, indicating that the Na2SO4· 10H2O/EP has a good thermal stability .关键词
Na2SO4·10H2O/定形相变材料/膨胀珍珠岩/热稳定性Key words
Na2SO4 · 10H2O/shape-stabilized PCMs/expanded perlite/thermal stability分类
建筑与水利引用本文复制引用
刘磊,彭犇,邱桂博,郭敏,程芳琴,张梅..不同载体的Na2SO4·10H2O基定形相变材料的制备和热性能研究[J].人工晶体学报,2017,46(12):2374-2379,2385,7.基金项目
国家自然科学基金(51672025,51572020,51372019) （51672025,51572020,51372019）
山西省科技支撑计划(MC2016-03) （MC2016-03）
