加热装置在防寒服中的位置及其热效用

为明确加热装置与防寒服系统的最优组合方法,以满足人体热舒适性及提高加热效率为原则,选用市场上已有的服装加热装置,采用暖体假人着装测试,在环境温度为-11.8 ℃,假人静止站立条件下,探究加热装置与防寒服系统的最优组合。结果表明:加热装置适宜放置在前胸、肩部、腹部、前臂和小腿等5个部位,且均为防寒服内胆的里料外侧,并推荐加热温度范围在腹部37~40 ℃、肩部40~44 ℃、前胸44~49 ℃、前臂和小腿49 ℃以上时,能够更好地发挥其加热效用,满足人体的热舒适性;另外,隔热值越高的服装,其搭配加热装置后的加热效果越好,研究结果为加热服热功能的设计开发提供了数据参考。

Thermal function effectiveness and location of heating device in cold protective clothing

In current research on using heating device in cold protective clothing, it is found that there was a lack of overall design on heating position and quantitative analysis on heating temperature range. In order to obtain the optimal combination of heating device and cold protective clothing, a commercial clothing heating device was employed to meet human thermal comfort and improve heating efficiency. Various combination experiments were carried out at -11.8 ℃ through a thermal manikin test (the manikin was standing still). The results reveal that five body zones including upper chest, shoulder, abdomen, forearm and calf are the suitable heating places. It is recommended to heat up outside the lining of clothing liner, and the suitable heating temperature range for each location is given as 37-40 ℃ for abdomen, 40-44 ℃ for shoulder, 44-49 ℃ for upper chest, over 49 ℃ for forearm and calf. Better heating effect is obtained with higher clothing thermal resistance. The results provid data foundations for the design and development of thermal functions for heating clothing.