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

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

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

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

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