THE SOLUTION OF COUPLED HEAT AND MOISTURE DIFFUSION WITH SORPTION FOR TEXTILES

In this paper, a numerical mathematical model, which deals with the water vapor sorption mechanisms in fabric, is developed. The model describes and predicts the coupled heat and moisture transport in textile materials. Since the flow rate of moisture diffusing through clothing textiles is too small to be measured directly, the measurement is usually indirect and the interaction between thermal and moisture transport is not considered. In this study, a mathematical model was introduced to describe the moisture migration and thermal transport through porous textiles in order to evaluate the thermal clothing comfort and the interaction between heat and moisture transportation. The model is based on the energy and moisture conservation equations during the transportation. For numerical solution, the finite elements method is used. The results are enclosed at the end.