B.A. Yinga, Y.L. Kwoka, Y. Lia, C.Y. Yeungb, Q.Y. Zhua, F.Z. Lia
a Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong, China
b Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
On the basis of the mathematical model of heat and moisture transfer through multi-layer PCM textile, four numerical simulations have been carried out to examine the thermoregulatory effects of PCM textile assembly in this paper. In these simulations, the multi-layer assembly is comprised by three layers PCM textiles based on polyester, including two of 2.5mm thick as inner and outer layer, and one of 5mm thick as the middle layer, which separate by 1mm air layer. The distribution of the temperature in the three layers PCM textile assembly, in which with different add-on level of PCM, were numerically computed and compared for the both warming and cooling process. The results indicate that the thermoregulatory effects of the multi-layer PCM textile assemblies are significantly influenced by the distribution of PCM add–on level in each layer. The more PCM contains in the middle layer, the higher thermoregulatory effects of the multi-layer assembly will be.
