The Effect of Geometrical Structure on the Heat Transfer of Insulating Nonwovens: A Comparison of Single and Double Layered Nonwovens

보온용 부직포의 구조적 특성이 열전달에 미치는 영향: 단층구조와 이층구조 부직포의 비교

The purpose of this study was to investigate the effect of geometrical structure on the heat transfer of insulating nonwovens. Commercially available single and double layered polyester nonwovens have used. Thermal conductivity, k and thermal conductance, h were measured by using a constant temperature sandwich type device at dry and wet state. The results obtained were as follows: 1. Double layered nonwovens showed slightly lower thermal conductance and higher warmability than single layered nonwovens. 2. As moisture regain increased, double layered nonwovens showed higher increasing rate of thermal conductivity than single layered nonwovens.