liquid on the tray. Depending on the water and air flow rates, spray, froth, emulsion, bubble, and cellular foam flow regimes can occur in a sieve tray. There are four instances that can reduce the operating efficiency of the sieve tray: entrainment flooding, entrainment, weeping, and downflow flooding. Entrainment flooding is where both downflow flooding and entrainment occurs because the ratio of the flow rate of vapor to the flow rate of air is too high. Entrainment is where vapor carries the…
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