Diameter of the sieve tray column is determined by the_________________?
Correct answer: B. Upper limit of the vapour velocity
- A. Lower limit of vapour velocity
- B. Upper limit of the vapour velocity
- C. Hole diameter of the sieve tray
- D. Height of the plate spacing
Explanation
Sieve-tray diameter is selected from the allowable vapour velocity, especially its upper limit, which is governed by entrainment and flooding. Hole diameter and plate spacing affect tray design but do not directly set the column diameter.
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