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| 相变材料三水醋酸钠储热性能实验研究 | |
| 引用本文： | 王智平,郭长华,王克振,彭国伟.相变材料三水醋酸钠储热性能实验研究[J].化学工程,2011,39(5):27-30. |
| 作者姓名： | 王智平 郭长华 王克振 彭国伟 |
| 作者单位： | 1. 兰州理工大学材料科学与工程学院,甘肃,兰州,730050;兰州理工大学可再生能源研究院,甘肃,兰州,730050 2. 兰州理工大学材料科学与工程学院,甘肃,兰州,730050 3. 兰州理工大学可再生能源研究院,甘肃,兰州,730050 |
| 基金项目： | 国家自然科学基金资助项目，2010年甘肃省科技支撑计划项目资助 |
| 摘 要： | 以三水醋酸钠(CH3 COONa·3H2O)为相变储热基材,添加各种不同成核剂和增稠剂,比较它们的效果,寻求储热性能优越的组合配方.实验表明:对于同一成核剂,随添加量的增加,CH3COONa·3H2O的过冷度有增大的倾向.在10 g CH3COONa·3H2O中添加0.05 g的Na2HPO4·12H2O,抑制过冷的效... |
| 关 键 词： | 三水醋酸钠 相变储热材料 储热体系 过冷 相分层 |
Experimental study on heat storage performance of sodium acetate trihydrate as phase change material |
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| WANG Zhi-ping,GUO Chang-hua,WANG Ke-zhen,PENG Guo-wei.Experimental study on heat storage performance of sodium acetate trihydrate as phase change material[J].Chemical Engineering,2011,39(5):27-30. | |
| Authors: | WANG Zhi-ping GUO Chang-hua WANG Ke-zhen PENG Guo-wei |
| Affiliation: | WANG Zhi-ping1,2,GUO Chang-hua1,WANG Ke-zhen2,PENG Guo-wei1(1.School of Materials Science and Engineering,2.Renewable Energy Institute,Lanzhou University of Technology,Lanzhou 730050,Gansu Province,China) |
| Abstract: | Sodium acetate trihydrate(CH3COONa·3H2O) was used as a substrate material of phase change heat storage by adding various nucleating agents and thickeners to compare its effect so that to find out the best combination for superior heat storage performance.The experiments show that for the same type of nucleating agent,the degree of supercooling of CH3COONa·3H2O has an increasing tendency with the increasing of its adding amount.The effect of inhibiting supercooling is the best when adding 0.05 g Na2HPO4·12H2O in 10 g CH3COONa·3H2O.The supercooling performance of CH3COONa·3H2O can be further improved with 0.3 g carboxymethyl cellulose(CMC),and the degree of supercooling can be reduced to 2.015 ℃.It can effectively prevent phase stratification.The experiment also shows that 65 ℃ is suitable as the constant temperature of CH3COONa·3H2O system. |
| Keywords: | sodium acetate trihydrate phase change material as heat storage heat storage system supercooling phase stratification |
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