Reference:  Piping Calculations Manual, 2005, McGraw-Hill, E. Shashi Menon, P.E., Page 335, Example 6.16


Pipe Flow Expert File: Case_01_Petroleum_Oil_Pipeline_Pressure_Loss.pfe


Problem Description: 

Find head loss in one mile of NPS16 (0.250 inch wall thickness) pipeline at a flow rate of 4000 barrel/h.


A screenshot of a computer??Description automatically generated


Fluid Data: Petroleum oil with a 0.85 specific gravity and 10 cSt viscosity.


Result Comparison: 


Data Item

Published data

Pipe Flow Expert

Head Loss ()

29.908

29.930

Reynolds Number

57129

57130

Fluid Velocity (ft/s)

4.76

4.761

Friction factor

0.0208

0.02078


Commentary: 

The published data and the calculated results compare very well.

The rounding of the fluid velocity to 2 decimal places in the published data accounts for the slight differences with Pipe Flow Expert.