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设计了一种测定多孔介质热质迁移特性的实验装置。通过测定该装置中多孔介质的局部温含量和温度，结合恒热流下一维半无限大多孔介质热质迁移微分方程的解，得到了石英砂、玻璃珠等多孔介质的质扩散系数、热质扩散系数、名义热扩散系数、名义导热系数等热质迁移特性参数以及这些参数随湿含量、温度的变化。此外，还讨论了加热功率、初始湿含量等因素对测量的影响。
An experimental device for measuring the heat and mass transfer properties of porous media was designed. By measuring the local temperature and temperature of porous media in this device and combining with the solution of differential equations of thermal and mass transfer in one-dimensional semi-infinite porous media under constant heat flow, the mass diffusion coefficients, thermal mass Diffusion coefficient, the nominal thermal diffusion coefficient, the nominal thermal conductivity and other heat and mass transfer characteristics parameters and these parameters with the moisture content, temperature changes. In addition, the influence of heating power, initial moisture content and other factors on the measurement is also discussed.