Process Equipment and Plant Design
LMTD correction factor is used in heat exchanger design for

Multipass shell and tube heat exchanger
Double pipe heat exchanger
Counter flow of hot and cold fluids
Fouling fluids

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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
Hydrostatic head is required for refluxing the condensate
Only the function of condensation is to be carried out

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

Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres
It is suitable for process, in which the final product is a liquor instead of solid
It is unsuitable for concentrating those liquids, which form a scale or deposit salt
Liquor flows inside the tube, while the steam is outside submerging the tube

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