外文翻譯---微孔膜防水透濕織物熱濕傳遞中織物表面凝結(文件)
【正文】 材料 g 三個樣本的檢驗方法 應該 相同 ， 它們包括傳統(tǒng)面料 ,緊密織物， 微孔膜織物面料和無孔薄膜 。 表 1 列出各 種活動 的 水汽 產生量， 并表明多少水汽必須遺失要達到舒適 。m2飽和線是描述在特定的溫度下水蒸汽的壓力上升到 100%的相對濕度，見圖 1。雖然織物的防水性和可透氣性集中在這些織物是否可以減少熱壓力和不舒適度與此同時在風雨里提供一定的保護。 Keighley 和 Ruckman 在理論上提出，利用飽和蒸汽線和水蒸汽濃度線防止在織物上產生凝結的措施。 透氣 。 為了開發(fā)織物 ， 有必要更廣泛的開發(fā)和研究面料， 特別是透氣織物和在惡劣的條件下實驗 。為了研究發(fā)生在織物表面的冷凝機制，一種能同步獲得溫度和對應的濕度的測量設備被設計了出來。2176。 1 Condensation of Water Vapor on Waterproof Breathable Fabrics 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 20176。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 the local temperature. Keighley and Ruckman suggested from theory that the condensation occurring on the fabrics may be predicted if a saturation line and water vapor concentration line is utilized .Keighley developed a method that involved measurement of water vapor concentration utilizing infrared absorption at the specific frequency of a strong water vapor absorption and Ruckman provided a solution to the problem of condensation on the inner surface of fabric by perforating metal cylinder simulating the perspiring human body to 2 investigate the couple mechanism s of water vapor transfer an d heat transfer .More rec
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