Inputs

You can attach an image of your calcs. Many of us would be happy to look them over... however, you must be able to take the heat (pun intended). A heat exchanger/pressure vessel is nothing to play with if you don't know what you are doing. It's like playing with fire, while soaked in gasoline... you may end up killing yourself or others if you don't get something right (more on the pressure vessel side of things).

Post your calcs and we'll take a look at them.

I had written programs for sizing, that also included the delta P. But that was just on the Tube side.

The shell size, I run actual flow tests to and got emperical information.

I would be interested to see these.

ANY INPUT

I'll have to wait till I get home, Alittle blurry but readable.

Interesting, I'm curious on how you came up with leakages, as well as impingement.