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Mean crossflow velocity, v, the resulting pressure drop, ∆pL, the wall shear stress, τw, and the wall shear rate, γT, for spiral wound membrane (SWM), ceramic tubular membrane (CTM), and hollow fiber membrane (HFM) at a feed volume flow of = 20 m3·h−1.
| Type | Mean Crossflow Velocity v, m·s−1 | Pressure Drop ∆pL, bar·m−1 | Wall Shear Stress τw, Pa | Wall Shear Rate γT, 103·s−1 |
|---|---|---|---|---|
| HFM | 1.6 ± 0.01 | 0.6 ± 0.01 | 23 ± 2.1 | 25 ± 2.1 |
| SWM | 0.6 ± 0.01 | 1.3 ± 0.03 | - | - |
| CTM | 3.3 ± 0.01 | 0.8 ± 0.04 | 76 ± 8.4 | 82 ± 10.2 |
