Abstract
In this paper, the effect of fabric thickness and boundary condition at lower temperature side on qmax, an objective measure of fabric warm/cool feeling is investigated through theoretical calculation and experiment. Following results are obtained. The relationship between qmax and fabric thickness is derived through mathematical model of transient heat conduction in the measurement system. The qmax value is constant above dcr, the critical thickness determined by thermo-physical properties of fabrics. This qmax can be called as intrinsic qmax value. Below dcr, qmax deviates from intrinsic qmax value to higher value in spite of the boundary condition at lower temperature side. This relationship between qmax and fabric thickness predicted theoretically is confirmed through experiment.
