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本文讨论含湿毛细多孔体介质中的热湿迁移过程,求得常物性假定下一维半无限大物体在边界常热流作用下的瞬变温度场和含湿率场,探讨利用常功率平面热源法测定合湿多孔材料热湿迁移特性的可行性。 影响含湿多孔体介质中的热湿迁移因素很多。文献中,各研究者由于所作的假设和着重点不同,导出的基本方程组也不尽相同。重要而又困难的问题是确定方程组中的各种热湿迁移特性。清华大学曾利用常功率平面热源法对测定含湿材料的导热系数和导温
In this paper, the heat and moisture transfer process in porous media with wet capillary pores is discussed, and the transient temperature field and moisture content field of the one-dimensional semi-infinite object under the constant heat flow are obtained under the assumption of common property. Feasibility Study on Determination of Heat and Moisture Transfer Characteristics of Humid Porous Materials. There are many factors that affect the heat and moisture migration in a porous media containing moisture. In the literature, due to the different assumptions and emphases made by each researcher, the basic equations derived are not the same. An important and difficult issue is to determine the various heat and moisture migration properties of the system of equations. Tsinghua University has used the constant power planar heat source method for the determination of the thermal conductivity of the wet material and the thermal conductivity