Mathematical modelling of combined diffusion of heat and mass transfer through fabrics

This study presents a theoretical and experimental investigation of the process of drying of fabrics on a continuously moving flat plate. A mathematical model is developed for heat and mass transfer analysis of fabric in the impingement dryers. For simplicity, it is assumed that during the drying period of the fabric has porous media and on the drying surface the vapour pressure of the evaporating liquid remains at a quasi-saturated value corresponding to the temperature of the liquid. Using the model, the calculated transient fabric temperatures in the impingement dryers agree well with the experimental results