頁籤選單縮合
題 名 | 通風用多孔管之氣流模式研究=Air Discharge Model along a Perforated Tube for Ventilation |
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作 者 | 陳加忠; 林瑞松; 翁郁凱; | 書刊名 | 中華農業氣象 |
卷 期 | 6:2 1999.04[民88.04] |
頁 次 | 頁65-75 |
分類號 | 435.16 |
關鍵詞 | 通風; 多孔管; 均勻性; 氣流模式; Ventilation; Perforated tube; Uniformity; Exit velocity mode; |
語 文 | 中文(Chinese) |
中文摘要 | 此研究依據熱傳與質傳原理建立多孔通管各開口處風速與氣溫的預測模式。試驗 設備包括出口空氣的加溫與降溫裝置。模式預測性能的評估則利用各種作業狀態下之模擬 值與量測值比較。試驗設計考慮風管上之開口面積與開口距離沿風管方向變化。研究結 果顯示預測值與量測值符合良好。太陽能量對風管內氣流溫度有顯著影響。由敏感性分 析可評估各種作業狀態下各出口之均勻性能。此模式可做為通風用多孔風管設計之有用 工具。 |
英文摘要 | A model based on the heat and mass transfer was established to predict the exit velocities and air temperatures of air discharge along a perforated tube. The calculated velocities and temperatures agreed well with the measured data. The experimental devices included the heating and cooling equipment to increase or decrease the air temperatures leaving ventilated fans. The evaluation of the of the model predictive performance included the comparison of the calculated and measured data at differential experimental conditions. The diameters or distances of the holes were varied along the tube. Solar radiation had the significant effect on the air temperatures of outlet. By the sensitive analysis, the uniformity of air discharge characteristics could be evaluated. The model could serve as a sueful tool to design the perforated tube for ventilation. |
本系統中英文摘要資訊取自各篇刊載內容。