## Case 01: Petroleum - Oil Pipeline Pressure Loss

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.

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.