Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

None of these
Steam is fed to the shell, whereas the liquor is filled inside the tube
Liquor level is maintained at l/3rd to 1/2 of the height of the tube
Tube dia is 3-6 cms, while tube length in 3-6 metres

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Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Employs high velocity, high heat transfer rate and less heating surface requirement
Both B & C
Is economical in operation
Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

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