The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called____________________?
Correct answer: B. Static submergence
- A. Downcomer liquid seal
- B. Static submergence
- C. Skirt clearance
- D. None of these
Explanation
Static submergence is the liquid depth above the top of the bubble-cap slots when the tray liquid is just at the overflow-weir level with no flowing liquid head. It provides the static seal that prevents vapour from bypassing the liquid.
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