摘要
本研究采用暖体假人研究了冷环境下化学加热和电加热服装的舒适性参数,包括:服装总热阻、有效加热功率和加热效率,并研究了两种不同风速对上述参数的影响,最后采用红外热像仪研究了各服装组合在其局部部位处的温度分布。研究结果表明,化学加热服装和电加热服装的总热阻均显著大于非加热服装;在0.4±0.1 m/s的风速下,化学加热服装的总热阻及化学加热片的有效加热功率均显著低于电加热服装,而在1.0±0.1 m/s的风速下两者没有显著差异。此外,化学加热片的加热效率低于电加热片,而化学加热服装的表面温度则高于电加热服装。
In this study, the performance of the two heating ensembles was investigated using a thermal manikin in a cold environment. The effect of two levels of air velocity on the total thermal insulation, the heating efficiency and effective power was discussed. An infrared thermal camera was used to detect the surface temperature distributions of the heated vest and kneecaps. Results demonstrated that the clothing thermal insulation was significant higher when heating was presented compared to the control scenario in both two levels of air velocity. In addition, the electrically heated clothing（ EHC） exhibited a significantly higher effective heating power and a larger thermal insulation than those of the chemically heated clothing（CHC） at 0.4 m/s air velocity, whereas no significant difference was observed under the 1.0 m/s air velocity. The EHC showed a higher heating efficiency than that of CHC, but the outer surface temperature of the CHC was higher than that of EHC.
出处
《中国个体防护装备》
2016年第2期40-45,共6页
China Personal Protective Equipment
基金
江苏省自然科学基金(项目编号:BK20130312)
关键词
冷环境
暖体假人
电加热
化学加热
加热效率
cold environments
thermal manikin
chemical heating
electrical heating
heating efficiency
