微孔膜防水透湿织物热湿传递中织物表面凝结------外文翻译.doc
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微孔膜防水透湿织物热湿传递中织物表面凝结------外文翻译,condensation occurs when the local vapor pressure rises above the saturation vapor pressure at the local temperature in theory. a new measuring apparatus were m...
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Condensation occurs when the local vapor pressure rises above the saturation vapor pressure at the local temperature in theory. A new measuring apparatus were made to obtain temperature and relative humidity simultaneously for the purpose of investigating the mechanism of condensation occurred on the fabrics. The experiment conducted at the standard condition of temperature of 20°C and relative humidity of 65%. The result obtained from experiment showed that condensation could occur under the situation closed to saturation line as the temperature on fabric may be lower than dew point of water vapor in the measuring box depending on the experiment conducted at an ambient environment temperature of 20°C. The range of fabrics studied showed that PTFE laminated fabrics except nylon gingham PTFE laminated fabric facilitates the loss of water vapor and therefore prevent condensation. It is necessary to develop studies from a wide range of fabrics, especially breathable fabrics and under bad experiment condition in order to develop fabrics, which could eliminate condensation, or transport water vapor through the fabric while remaining waterproof.
Keywords: condensation ;waterproof breathable fabric.
Introduction
The human body through the process of metabolism is constantly generating thermal energy and moisture, which exchange through the textile layers with its environment .As perspiration escapes from the human body when the water vapor transfer from clothing is low .condensation defined as water droplet collected on the inner surface of the clothing may occur, provided that the local vapor pressure rises above the saturation vapor pressure at
在理论上，凝结发生在当地的气温下当当地的蒸汽的压力上升到高于饱和蒸汽的压力的时候。为了研究发生在织物表面的冷凝机制，一种能同步获得温度和对应的湿度的测量设备被设计了出来。实验是在温度20℃相对湿度为65%的条件下进行的。实验结果表明,冷凝可能在靠近饱和线的情况下发生，因为在测量温度为周围环境温度20℃时，织物表面的温度可能会低于水蒸气的露点。各种面料的研究表明,聚四氟乙烯层压织物除外尼龙格子聚四氟乙烯层压织物有利于水汽的损失，因此防止水汽凝结。为了开发织物，有必要更广泛的开发和研究面料，特别是透气织物和在恶劣的条件下实验。这些织物可以消除冷凝，或防止运输水蒸汽通过。
关键词：凝结; 防水; 透气; 面料
引 言
人体在代谢的过程中，人体不断和外界环境不断做热能和水分的交换通过织物。当水蒸汽的运输在衣服中比较慢，伴随人体的代谢物就会从体内出来。冷凝定义为当水滴在衣服的内表面聚集时就发生，只要在在地方的温度下水蒸汽的压力高于饱和的水蒸汽的压力情况下。
Keywords: condensation ;waterproof breathable fabric.
Introduction
The human body through the process of metabolism is constantly generating thermal energy and moisture, which exchange through the textile layers with its environment .As perspiration escapes from the human body when the water vapor transfer from clothing is low .condensation defined as water droplet collected on the inner surface of the clothing may occur, provided that the local vapor pressure rises above the saturation vapor pressure at
在理论上，凝结发生在当地的气温下当当地的蒸汽的压力上升到高于饱和蒸汽的压力的时候。为了研究发生在织物表面的冷凝机制，一种能同步获得温度和对应的湿度的测量设备被设计了出来。实验是在温度20℃相对湿度为65%的条件下进行的。实验结果表明,冷凝可能在靠近饱和线的情况下发生，因为在测量温度为周围环境温度20℃时，织物表面的温度可能会低于水蒸气的露点。各种面料的研究表明,聚四氟乙烯层压织物除外尼龙格子聚四氟乙烯层压织物有利于水汽的损失，因此防止水汽凝结。为了开发织物，有必要更广泛的开发和研究面料，特别是透气织物和在恶劣的条件下实验。这些织物可以消除冷凝，或防止运输水蒸汽通过。
关键词：凝结; 防水; 透气; 面料
引 言
人体在代谢的过程中，人体不断和外界环境不断做热能和水分的交换通过织物。当水蒸汽的运输在衣服中比较慢，伴随人体的代谢物就会从体内出来。冷凝定义为当水滴在衣服的内表面聚集时就发生，只要在在地方的温度下水蒸汽的压力高于饱和的水蒸汽的压力情况下。
