摘要
基于人体和织物接触时的瞬态和稳态传热分析,构建了瞬态和稳态传热阶段的传热方程,分析了影响织物凉感的影响因素。以棉纱为经纱,不同细度的高导热聚乙烯长丝或不同比例长丝与棉纱作为纬纱织入,制备了不同组织结构的系列织物样品,采用自制的热流式织物凉感仪对样品进行传热效果测试。结果表明:高导热聚乙烯长丝的织入,大大提高了织物的传热性能,尤其是稳态传热,针织物由于接触热阻,导致其沿平面方向的传热量远远小于机织物。认为:构建的瞬态和稳态传热阶段的传热方程能够解释人体接触织物的传热过程,为新型凉感织物的研发提供了技术支撑。
Based on the instant state and steady state thermal analyses when human body was contacted fab- ric, heat transfer equations for instant state and steady state were established. The influence factors for the cool feeling of fabric were analyzed. Cotton yarn was used as warp while higher heat conductivity polyethylene filament with different fineness or feeding filament and cotton yarn with different proportion were used as weft. Fabric samples with different texture were produced. The heat transfer effects of samples were tested by self-made heat flow fabric cool feeling tester. The test results showed that the heat transfer property especially for steady state heat transfer was greatly improved by weaving higher heat conductivity polyethylene fiber. The heat transfer a- mount of knitting fabric along with plane direction was much less that of woven fabric due to contact heat resist- ance. It is considered that the heat transfer process when human contact with fabric is explained by establishing the heat transfer equation at instant state and steady state. Technology support is provided for the development of new cool feeling fabric.
作者
肖红
XIAO Hong(Military Academy of Science System Engineering Institute Military Supplies Engineering Technology Institute,Beijing,100010)
出处
《棉纺织技术》
CAS
北大核心
2018年第7期27-32,共6页
Cotton Textile Technology
关键词
传热
热导率
聚乙烯长丝
凉感
织物
传热差异
长丝含量
Heat Transfer
Heat Conductivity
Polyethylene Filament
Cool Feeling
Fabric
Heat TransferDifference
Filament Content
