critical relative humidity 中文意思是什麼
critical relative humidity
解釋
臨界相對濕度-
Based the humidity theory, the paper adopts the relative humidity as the character value and puts forward using 30 % rh and below 0c dew - point as the on - line monitoring critical value. it gives the method of volume ratio convert at the different temperature. with the standard value, we can conclude the result of moisture content
針對現有規程標準中控制水分的指標的缺點和局限，提出了採用相對濕度作為監測特徵量並轉換為露點以直觀表示設備絕緣狀況：採用30相對濕度及0以下露點作為監測的臨界值與允許值；同時推導出了體積比單位在不同溫度下的折算方法，以結合現有標準，綜合分析，做出判斷結論。 -
If the cold plate temperature is higher than a certain critical value, for instance, - 12 c under our observed experimental conditions, the higher the air relative humidity is, the bigger the water droplets concreting on the cold plate, and the later the water droplets froze. however, if the cold plate temperature is lower than a certain critical value, the influence of air relative humidity on the frozen time of water droplets was not observed. if the cold plate temperature is higher than a certain critical value, for example, - 20 c under our observed experimental conditions, frost deposition is through condensation, or condensation frosting
結果表明，冷壁面溫度越低，水珠凍結時間越短，且凍結的冰珠越小;當冷壁面溫度高於某一臨界值，譬如，在我們給定的實驗條件下， - 12 c時，空氣相對濕度越大，冷壁面上凝結的水珠越大，水珠凍結越晚，但當冷壁面溫度較低時，幾乎觀察不到空氣相對濕度對水珠凍結時間的影響;冷壁面溫度高於某一臨界值，譬如，在我們給定的實驗條件下， - 20 c時，發生凝結成霜，冷麵溫度低於這一臨界值時，發生凝華成霜;隨著實驗工況的不同，觀察到的霜晶呈現八種不同的形態。
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