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首页> 外文期刊>Textile Research Journal >Water Vapor Transport Through Textiles and Condensation in Clothes at High Altitudes―Combined Influence of Temperature and Pressure Simulating Altitude
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Water Vapor Transport Through Textiles and Condensation in Clothes at High Altitudes―Combined Influence of Temperature and Pressure Simulating Altitude

机译：高海拔地区通过纺织品的水蒸气传输和衣服中的冷凝水-温度和压力模拟高度的综合影响

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摘要

A new apparatus is developed to measure the water vapor permeability resistance of textiles with and without temperature differences imposed on both sides of a specimen. Water vapor resistance is measured for a combination of temperature and pressure that simulates elevated altitudes. The effect of temperature on water vapor resistance is small, while that of pressure is significant, that is, water vapor resistance decreases with increasing simulated altitude due to an increase in the water vapor diffusion coefficient with increasing altitude. The amount of condensation in the specimen tends to increase with increasing simulated altitude. Moreover, water vapor resistance decreases appreciably due to increased condensation in the specimen. In addition, the reduced resistance further enhances the amount of condensation. These results indicate that decreased water vapor resistance enhances condensation in clothes and thus may cause further discomfort and a drop in body temperature at high altitudes.
机译：开发了一种新的设备来测量在有和没有施加在样品两侧的温度差的情况下纺织品的耐水蒸气渗透性。在模拟升高的海拔高度的温度和压力的组合下测量水蒸气阻力。温度对水蒸气阻力的影响很小，而压力对水蒸气阻力的影响很大，也就是说，水蒸气阻力随着模拟高度的增加而降低，这是由于水蒸气扩散系数随高度的增加而增加。样品中的冷凝量会随着模拟高度的增加而增加。而且，由于样品中凝结的增加，耐水蒸气性明显降低。另外，减小的电阻进一步增加了冷凝量。这些结果表明，降低的耐水蒸气性增强了衣服中的凝结，因此在高海拔地区可能导致进一步的不适感和体温下降。

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