【摘要】 应用不可逆过程热力学研究木材干燥过程热质迁移及其耦合效应。根据不可逆过程的熵的产生率推导出含有耦合效应的传热传质关系式 ,提出湿度梯度不仅引起水分物质流 ,也引起热流 ,以及驱动水分物质流的力应是扩散势梯度。更多还原

【Abstract】 The heat and mass transfer and coupling effect in wood drying were studied by applying the thermodynamics of irreversible processes. The relation of the heat and mass transfer and contained coupling effect were deduced in terms of the rates of entropy producing in irreversible processes. It might be sought that the moisture gradient not only leads to a water mass flux, but also gives rise to a heat flux. It is interesting to note that the force to drive water mass flux is the diffusivity gradient.=更多还原