关键词: 脂肪酸, 相变, 材料, 传热, 液相渗漏, 储热

Abstract: With increasing energy consumption，energy storage techniques are becoming more and more important. The phase change materials (PCM)，which are efficient latent heat thermal storage materials，play an important role in the latent heat thermal storage system. Fatty acids PCM because of its rich resources，characteristics of eutectic and cocrystallization，large latent heat，cleanness and renewableness have attracted extensive attention. However，poor heat conductivity，leakage in solid-liquid phase change are the disadvantages. In this paper，fatty acids PCM heat transfer and leakage are reviewed and heat transfer enhancement to resolve the shortcoming of low thermal conductivity is discussed. A thermal heat transfer model is established and the behavior of heat transfer is predicted，and coefficient on leakage issues raised. Four solutions of liquid leakage are proposed and their advantages and disadvantages are analyzed. The prospects of fatty acids PCM are presented.

Key words: fatty acids, phase change, materials, heat transfer, liquid phase leakage, heat thermal storage