复合相变材料导热系数的分形研究

Fractal Study on Thermal Conductivity of Composite Phase Change Materials

导热系数是复合相变材料一个重要的物性参数,常温下的热导采用实验的方法测量,得到的数据较为准确。分形理论通过分形体的自相似原则,来达到简化复合材料微观结构的目的。在之前的研究基础上结合制备出的LiNO_3-KNO_3/EG相变材料计算其有效导热系数,并与实验数据进行对比。

Thermal conductivity is an important physical property parameter of composite phase change material.The thermal conductivity at room temperature is measured by experimental method.Fractal theory is used to simplify the microstructure of composite materials by the principle of self similarity.On the basis of previous studies,the effective thermal conductivity of LiNO3-KNO3/EG phase change material was calculated and compared with the experimental data.