Distillation Tray Efficiency: flooding_velocity
Distillation tray efficiency data: O'Connell overall column efficiency vs alpha*mu (14 data points, formula Eo=50.3*(alpha*mu)^-0.226), Murphree tray efficiency ranges by tray type and system, weep-point velocities, Fair flooding C-factors (Csb) at multiple tray spacings, downcomer backup limits, tray pressure drop components, turndown ratios, and tray spacing recommendations
| parameter type | record id | notes | system description | tray type | unit | value max | value min | value typical |
|---|---|---|---|---|---|---|---|---|
| flooding_velocity | sieve_fair_450mm_spacing | Fair-method Csb at 450mm tray spacing; lower spacing reduces column height but reduces capacity and operability | Fair CSB at 450mm (18in) tray spacing | sieve | m/s | 0.082 | 0.055 | 0.068 |
| flooding_velocity | sieve_fair_600mm_spacing | Fair-method Souders-Brown flooding C-factor (Csb) at 600mm tray spacing for sieve trays; FLV=0.1 (low liquid load); C_sb is in m/s; actual flooding velocity = Csb*sqrt(rho_L-rho_V)/rho_V)^0.5; design at 80-85% of flood | Fair CSB at 600mm (24in) tray spacing | sieve | m/s | 0.1 | 0.07 | 0.085 |
| flooding_velocity | sieve_fair_750mm_spacing | Fair-method Csb at 750mm tray spacing; wider spacing used for foamy systems or high-liquid-load columns | Fair CSB at 750mm (30in) tray spacing | sieve | m/s | 0.115 | 0.082 | 0.098 |
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