Calculations for Vertical Vaporizer

[MTQ80]

Is there any one who can help to provide calcualtion procedures for verticle vaporizer.Liquid N2 will be used on tube side of vaporizer and water on out side of tubes. How vaporizer can designed for this application. Help out on this please.

 

[ash9144]

I assume this is the same application as before of the liquid N2 being used cool water.

If this is a shell and tube I think I would put the water on the tube side and nitrogen on shell. Usually you want your phase change (evaporation here) on the shell side to avoid any tube rupture issues. Also having the water on the tube side will increase the velocity and reduce possibility of freezing (and improve efficiency).

As for calculation vertical or horizontal doesn't make a difference. Still use Q=UAdT

If this is a falling film evaporator you really need to look at the velocities. I would be very concerned with freezing.

 

[Thealanator]

There are many companies that specialize in the design of liquid nitrogen vaporizers. I strongly suggest you contact one.

Have you considered an air vaporizer (ambient or forced draft)? We used to have liquid nitrogen vaporizers with hot water. The boilers, water pumps, etc. were a constant headache.