Steam Transposation

The thickness of the pipe is a function of the diameter and the pressure. It can be worked out from first principles by carrying out a force balance on a theoretical slice through the pipe, however if the pressure is known, it is easier to make a selection from tables of standards.

The diameter is a function of the flowrate; keep the average velocity below 10ms^-1.

The flowrate is a function of the user demands.

There is no reason to calculate anything: Simply measure the pipe! Unless, of course, this is a homework question and you have nothing to measure.

"We are using a pipe for steam conveying"....according to my understanding of the English language.....the pipe already exists.

Is this what you mean ???

Again we begin the lond and tedious game of "Guess what I am thinking????"

Easiest way is to "cheat"...I usually use something like this: http://www.cameronbook.com/