Process Equipment and Plant Design
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when

Sub cooling of condensate is desired
Both the functions of condensation & sub cooling are carried out in a single unit
Only the function of condensation is to be carried out
Hydrostatic head is required for refluxing the condensate

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

It is used for high viscosity liquor having large rate of scaling
The tube bundle is suspended on bracket
Downtake is formed by the annular space between the bundle and the shell
There is no central downtake

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