本文旨在探討平板交流型薄膜模組中透析伴超過濾之質量傳送。理論分析乃類比交流型熱交換器之熱傳原理,且忽略通道截面上之濃度變化。此簡化型質量傳送計算公式最適用於低流率操作。
The mass transfer for dialysis coupled with ultrafiltration through a cross-flow rectangular membrane module has been studied. Theoretical analysis of mass transfer in cross-flow membrane dialyzers was analogous to heat transfer in cross-flow heat exchangers with the assumption that the concentration variation in the cross-sections of flow channel was negligible. The simpler but still precise equation for predicting the total mass transfer rate might be more powerful than the exact solution obtained in previous work to over come the mathematical difficulties in device design, especially for low flow rate of retentate phase.