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- Numerical and Experimental Studies to Predict Properties of Gas Discharged from a Number of Nozzles on a Blow Pipe
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題名 | Numerical and Experimental Studies to Predict Properties of Gas Discharged from a Number of Nozzles on a Blow Pipe=由噴氣管上噴嘴所噴出脈衝空氣性質之研究 |
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作者 | 傅武雄; 葛家賢; | 書刊名 | 中國工程學刊 |
卷期 | 22:4 1999.07[民88.07] |
頁次 | 頁479-487 |
分類號 | 446.9 |
關鍵詞 | 脈衝式袋式集塵器; 清洗; 可壓縮流; Pulse-jet bag filters; Cleaning; Compressible flow; |
語文 | 英文(English) |
中文摘要 | 本文針對脈衝式袋式集塵器的清洗系統,以實驗及理論的方法,對由噴氣管上的 噴嘴所噴出之空氣脈衝作一研究。研究結果顯示:由噴嘴所噴出之空氣脈衝,其方向並不垂 直於噴氣管而與噴嘴的法線間存在一傾斜角;各噴嘴所噴出之空氣脈衝其質量流量亦不相同 。空氣脈衝的傾斜角與質量流率與噴嘴的位置與大小有關。應用本文的數學模式,藉改變噴 嘴的大小,可使每一噴嘴的質量流率皆相同。 |
英文摘要 | This study numerically and experimentally investigates the properties of pressure, temperature and mass flow rate of air discharged from a number of nozzles drilled on a blow pipe. In addition to deriving a set of equations to express the physical phenomena, this study also uses measurement equipment to measure the indispensable data used in the above equations. Consequently, the theoretical and experimental works complement each other. According to the results, the mass flow rate of the air pulse discharged from a nozzle depends on the position and diameter of the nozzle on the blow pipe. Furthermore, the direction of the discharged air pulse is not perpendicular to the blow pipe and has an inclined angle which also depends on the position of the nozzle on the blow pipe. Employing the model proposed herein, a uniform mass flow rate discharged from each nozzle can be obtained by adjusting the sizes of the nozzles on the blow pipe. |
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