What will be the pressure drop in total pipeline?
The pressure drop can be predicted to be any one of about 12 different values, depending on whose “flow correlation” equation you plug the variables into. I can remember using Beggs and Brill’s correlation, Hagedorn and Brown’s, the Dukler-Eaton-Flanagan correlation, and Orkiszewski’s, but there were plenty more. They all give different answers, and you have to read up on which ranges of variables each one is good for. You also need a figure for the wall roughness, especially at the speed your stuff will be travelling at. And even at that speed, the temperature drop over 100 metres might give a significant enough increase in the viscosity to need to be accounted for.
