摘要
以探索饱和一元脂肪醇作相变蓄热材料的可能性为目的 ,文中选择十八醇进行了量热学的实验研究。基于提出的凝固点和过冷度研究方法 ,由试验测得十八醇的凝固点为 5 7 1 2℃ ,过冷度为 0 0 1℃。十八醇的相变热为 2 4 2 85J/g。另外 ,经 5 0次冷热循环 ,十八醇凝固点与相变热的偏差分别为 0 2 6 %和 0 1 8%。上述结果表明十八醇为相变热大、过冷度小。
Focusing on the possibility of exploring the saturated unitary fatty alcohol as a thermal energy storage phase change material(PCM), 1 octadecanol was investigated by the calorimetry. At the basis of the self created methods about freezing point and super cooling, the two parameters of 1 octadecanol are 57 12?℃ and 0 01?℃. The fusion heat is 242 85?J/g. What's more, the deviations of the freezing point and the fusion heat of 1 octadecanol are 0 26% and 0 18%, respectively after 50 cooling and heating cycles. The above results manifest that 1 octadecanol can be made into thermal energy storage PCM, in the favor of large transition heat, slight super-cooling and good thermal stability.
出处
《北京化工大学学报（自然科学版）》
CAS
CSCD
2004年第3期18-21,共4页
Journal of Beijing University of Chemical Technology(Natural Science Edition)
基金
国家重点基础研究资助项目 (G2 0 0 0 0 2 6 30 7)
