Need equation for converting inches of water column to PPH, 150 psi steam. Need equation for converting inches of water column to SCFM, pressure compensated, 100 psi air. Both using orifice plates...

Please include variable descriptions.

Both equations to be impletmented in a AB SLC500 PLC.

Also looking for a good 'Control Engineer's Handbook' that contains similar equations and explinations.

All help is appreciated!!

 

Most if not all of your answers can be found in R.W. Miller's book "Flow Measurement Engineering Handbook" (McGraw-Hill publisher).

John Catch
http://inflowinc.com