In case of vertical tube evaporator, with increase in liquor level, the overall heat transfer co-efficient
A)Increases
B)Decreases
C)Is not affected
D)May increase or decrease; depends on the feed

Question

Quizplus · Accepted Answer

In a vertical tube evaporator, increasing the liquor level leads to a higher hydrostatic head, which in turn increases the liquid's resistance to flow. This results in a decrease in the circulation rate of the liquid, thereby reducing the overall heat transfer coefficient.

In Case of Vertical Tube Evaporator, with Increase in Liquor