丝织物的风速和透气性与热湿移动的关系

Studies of Heat and Wet Vapour Transfer in Silk Fabric

应用模拟装置,就风速和丝绸面料的透气性对热湿移动特性的影响作分析研究。结果表明,风速和透气性对热湿移动有明显影响。风速愈大,热湿散失愈多;透气阻抗R>0.25(kPa·s/m)时,对干热散失几乎无影响,对湿热散失有一定的影响;R<0.25(kPa·s/m),对干热和湿热散失都有较明显的影响。

With the simulative devices,was researched the effect of the air velocity and air permetrability on heat and wet vapour transfer in silk fabric.The result shows that both considerably influence the heat and wet vapour transfer performance of the fabric.The more rapid the air velocity,the more lost the heat and wet vapour.When the resistance R is greater than 0.25 Kpa.s/m,it has a comparartively smaller influence on wet vapour transfer,but no effect on heat transfer;when R is smallor than 0.25 Kpa.s/m it obviously influences both.