Question

1- Liquid flow in three pipe with different diameter

A) They have a same flow

B) Different heat loss?

C) Different head loss?

D) None Correct ? what they have in common & what are the differences in pipe

2- batch reactor is best used for ?

A) Methanol Production

B) Acetone production

C) Propylene production

D) asprin production

Answer 1

Ans 1 : B) Different heat loss

When the fluid is flowing from a pipe different factors account for the loss of heat from the liquid.

Here if the pipe material is same so the thermal conductivity of the pipe will be same for all. The diameter is different , so the surface area available for the heat loss will be different for all of them.

More the surafce area , more the heat loss. Since the length and radius of the pipe in which the liquids are flowing are different , so amount of heat loss will vary.

The temperature of air outside the pipe also governs the amount of heat loss from these liquids.