储能科学与技术2018，Vol.7Issue(4)：692-697,6.DOI:10.12028/j.issn.2095-4239.2018.0072
十四烷-正辛酸有机复合相变材料的制备和性能
Preparation and thermal property of a tetradecane-octanoic acid eutectic phase change material
摘要
Abstract
A new binary organic phase change material with a phase change temperature of 0~3 ℃was developed. The material was mad by mixing tetradecane and octanoic acid around their eutectic point predicted by a theoretical calculation, which also gave the latent heat. A differential scanning calorimeter, a step cooling curve measurement device, and a hot disk thermal analyzer were used to measure the thermal properties of the formulations. A cyclic thermal testing box was used for understanding the cycle stability of the formulations. The results showed that the eutectic point was 1.0 ℃ at a molar mass ratio of tetradecane to octanoic acid of 51∶49 with a latent heat of 191.8 J·g-1, and a thermal conductivity of 0.3790 W·(m·K)-1. The phase change material was shown to have a good cycle stability: the phase change temperature was 0.9 ℃ and the latent heat was 191.5 J·g-1, after 100 cycles.关键词
相变材料/蓄冷/热物性/循环稳定性Key words
phase change material/ cold storage/ thermal properties/ cyclic stability分类
能源科技引用本文复制引用
周孙希,章学来,刘升..十四烷-正辛酸有机复合相变材料的制备和性能[J].储能科学与技术,2018,7(4):692-697,6.基金项目
国家自然科学基金项目(51376115),上海市科委项目(16040501600). （51376115）
