相变储能材料十六醇-脂肪酸热力学性质的研究

The thermodynamic property study of hexadecanol-fatty acid as PCMs for energy storage

由步冷曲线法，绘制了十六醇-硬脂酸、十六醇-十六酸、十六醇-十四酸、十六醇-月桂酸、十六醇-癸酸5组不同组成二元物系的T-X相图，由相图可得出不同组成的相变温度以及最低共熔点组成，在此基础上利用DSC测定了这5组体系最低组成处的相变焓，由测定结果可知，每组相变焓均较大，可以作为相变材料使用。

The T-X phase diagrams of the hexadecanol-stearic acid, hexadecanol-palmitic acid, hexadecanol-myristic acid , bexadecanol-lauric acid and hexadecanol-capric acid as phase change materials （PCMs） with the method of cooling cure. The phase change temperatures of these five binary systems different components and the lowest eutectic component have been gained. The phase change enthalpys of these five binary systems lowest eutectic component have been determined with the method of differential scanning calorimeter （DSC）. The DSC thermal analysis results indicate that these five binary systems phase change enthalpys are all very good. So these five binary systems can all be used as PCMs.