物质相变点导热系数的测试方法

An Experimental Method for Measurement of the Thermal Conductivity of Material at the Melting/Freezing Point

设计了一种测试物质相变点固、液相导热系数的新方法。该方法用于测试处于低相变温度下的纯物质和湿多孔材料相变时固、液相的导热系数,测试结果与文献数据吻合较好。研究表明该方法用于研究物质相变温度下的热传导以及相界面的热物性是可行的。

An experimental method for measurement of the thermal conductivity of materials at the melting/freezing point has been developed. The thermal conductivity of benzene as well as the packed-bed composed of distilled water and sodium glass has been obtained by studying the uni-directional propagaion of the phase interface. The results prove the method is feasible as compared with the data from the literatures as well as from the numerical analysis.