For a given design of bubble cap, the number of bubble caps to be used per tray is set by the _________________?
Correct answer: A. Allowable gas velocity through the slots
- A. Allowable gas velocity through the slots
- B. Plate spacing
- C. Diameter of the column
- D. All A., B. and C.
Explanation
The number of caps is selected so the vapour passes through the available slots at an acceptable velocity without excessive pressure drop or entrainment. Therefore, allowable gas velocity through the slots is the controlling criterion.
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