DYNAMIC WATER-VAPOR AND HEAT-TRANSPORT THROUGH LAYERED FABRICS .3. SURFACE-TEMPERATURE CHANGE

In Parts I and II, we reported that during nonsteady-state transport o f water vapor through layered fabrics, the temperature between two fab rics rose. In this study, we measure the surface temperature of the fi rst-layer fabrics in similar experiments. The mass of the first layer is changed by tightly stacking the same fabrics, and the surface tempe rature rise is measured as a function of the mass and the kind of poly mers. The rise of surface temperature is proportional to the mass of f abrics and the water absorption characteristics of the polymers. We ca n confirm that the temperature rise that occurs in the space between l ayered fabrics is mainly due to the heat of absorption of water vapor by the polymers (fabrics).