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首页> 外文期刊>International Journal of Clothing Science and Technology >Investigation on thermal comfort of the uniform for workers in tropical monsoon climates
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Investigation on thermal comfort of the uniform for workers in tropical monsoon climates

机译:热带季风气候工人制服热舒适的调查

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摘要

Purpose This study aims to investigate the heat transfer mechanism of the uniforms used by people working in hot, humid and windy environments. Furthermore, the effectiveness of an opening structure added to the armpit of the uniforms in improving thermal comfort was comparatively examined. Design/methodology/approach A set of uniforms was tested with the opening at the armpit alternatively zipped or unzipped. Thermal manikin and human tests were performed in a climatic chamber simulating the specific environmental conditions, including wind speeds at four levels (0.15, 0.5, 2, 4 m/s) and relative humidities at two levels (50 and 85%). Static and dynamic thermal insulations of clothing (I-T) were examined by the thermal manikin tests. The human bodies' thermal responses, including heart rates (HR), eardrum temperatures (T-e), skin temperatures (T-sk) and subjective perceptions, were given by the human tests. Findings Special mechanisms of heat transfer in the specific uniforms used in tropical monsoon climates were revealed. Reductions on I-T were caused by the movement of the human body and the environmental wind, and the empirical equations would underestimate this reduction. The opening at the armpit was able to prompt more heat transfer under dynamic condition, with reducing the I-T by 11.8%, lowering the mean T-sk by 0.92 degrees C, and significantly improving the subjective perceptions (p 0.05). The heat exhaustion was alleviated with lowering the T-e by 0.32 degrees C. Originality/value This study managed to improve the thermal performance of uniforms for workers under unforgiving conditions. The evaluation and design methods introduced by this study provided practical guidance for similar products with strict dress codes and cost control requirements based on the findings from thorough product tests and analysis.
机译:目的本研究旨在研究在热,潮湿和刮风环境中使用的人们使用的制服的传热机制。此外,在提高热舒适性改善热舒适度的均匀腋中添加的开口结构的有效性相对接受。设计/方法/方法用腋下的开口测试一组均匀的均匀均匀地测试或解压缩。在模拟特定环境条件的气候腔室中进行热人体和人体测试,包括四个水平(0.15,0.5,2,4m / s)的风速和两个水平的相对湿度(50和85%)。通过热人体试验检查衣服(I-T)的静态和动态隔热。人体尸体的热反应,包括心脏速率(HR),耳膜温度(T-E),皮肤温度(T-SK)和主观感知,是由人类测试给出的。发现热带季风气候中使用的特定制服中传热的特殊传热机制。 I-T的减少是由人体和环境风的运动引起的,并且经验方程将低估这一减少。腋下的开口能够在动态条件下提高热传递,将I-T降低11.8%,将平均T-SK降低0.92℃,并显着改善主观感知(P <0.05)。通过将T-E降低0.32℃的T-E减轻了热耗。本研究的原创性/值包括在不可触益的条件下提高工人制服的热性能。本研究引入的评估和设计方法为具有严格的连衣裙码和成本控制要求的类似产品提供了实际指导,以及根据彻底产品测试和分析的研究结果。

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