• 作者： Yeh, Ho-Ming; Cheng, Tung-Wen
• 中文摘要： 本研究提出一個以雙曲線正切函數模式為基礎,並考慮軸向壓降之濾速修正方程式,可用於計算中空纖維薄膜模組內高分子溶液超過濾之濾速。計算值與實驗結果比較,顯示此修正方程式適用於低掃流速度或高進料濃度之情況。如採用更準確之壓力分布式或有較多之實驗數據以得出模式中修正常數,將能改進本理論之預測能力。
• 英文摘要： A correlation equation of permeate flux for membrane ultrafiltration of a dilute polymer solution in hollow-fiber membrane modules, has been derived based on the hyperbolic tangent model with consideration of the declination of transmembrane pressure along the axial direction in the hollow fibers. The results show that the validity of correlation prediction from the experimental data increases as the feed velocity decreases, or when the solute concentration increases. It is believed that correlation prediction may be improved if the exact pressure distribution is employed and more experimental data are used to correlate the equation for the proportion constant in this model.
• 中文關鍵字： 超過濾; 中空纖維; 雙曲線正切函數; 薄膜
• 英文關鍵字： Ultrafiltration; Hollow Fiber; Hyperbolic Tangent; Membrane