水分经非织造纤维类多孔介质蒸发时的几个物理参数测定

Measurement of Physical Parameters as Evaporation through Porous Nonwoven Medium

非织造材料是农业上用作覆盖物的一种重要材料 ,水分经这一材料蒸发时 ,涉及到复杂的热质同时传递现象。提出了一种试验方法和计算途径 ,对几种非织造纤维材料 ,可获得其在水分蒸发状态下表面的传质系数和传热系数。

Nonwoven material is one of important covers in agricultural application. Evaporation of water through the material involves mechanism of complex thermo-mass transport. A method of test and calculation is proposed for mass and thermal migration coefficients on the surfaces of several nonwoven materials.