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Natural Gas Pipeline Flow Calculations

Learn how to make calculations with widely used equations for natural gas pipeline flow calculations | Est. Length: 2 hrs

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Course Summary

Several different equations have been proposed and are in use for natural gas pipeline flow calculations. This course provides information about four of them. More specifically we will cover:

  • Natural Gas Properties
  • Laminar and Turbulent Flow in Pipes
  • Options for Natural Gas Pipeline Calculations
  • The Darcy Weisbach Equation
  • The Weymouth Equation
  • The Panhandle A Equation
  • The Panhandle B Equation
  • Examples Calculations
  • Summary
  • References

Who Should Take This Course

This course is intended for, petroleum engineers, chemical engineers, geotechnical engineers, environmental engineers, and civil engineers.An attendee of this course will gain knowledge about four equations commonly used for natural gas pipeline flow calculations and how to use them.

Learning Objectives

At the conclusion of this course, the student will

  • Be familiar with the natural gas properties, density, specific gravity, molecular weight, compressibility factor, and viscosity, and their use in pipeline flow calculations.
  • Be able to calculate the compressibility factor for natural gas with specified average gas pressure and temperature and known specific gravity.
  • Be able to calculate the viscosity of natural gas with specified average gas pressure and temperature and known specific gravity.
  • Be able to obtain a value for the friction factor using the Moody diagram for given Re and e/D.
  • Be able to calculate a value for the friction factor for specified Re and e/D, using the appropriate equation for f.
  • Be able to use the Panhandle A equation to calculate gas flow rate through a pipe with known diameter and length, elevation difference between pipeline inlet and outlet, specified inlet and outlet pressure and enough information to calculate gas properties.
  • Be familiar with the guidelines for when it is appropriate to use the Darcy Weisbach equation for natural gas pipeline flow calculations.
  • Be able to use the Darcy Weisbach equation and the Moody friction factor equations to calculate the frictional pressure drop for a given flow rate of a specified fluid through a pipe with known diameter, length and roughness.
  • Be able to use the Weymouth equation to calculate gas flow rate through a pipe with known diameter and length, elevation difference between pipeline inlet and outlet, specified inlet and outlet pressure and enough information to calculate gas properties.
  • Be able to use the Panhandle B equation to calculate gas flow rate through a pipe with known diameter and length, elevation difference between pipeline inlet and outlet, specified inlet and outlet pressure and enough information to calculate gas properties.

Course Length:

1:50 hrs video lectures

10 mins quiz


Your Instructor


Dr. Harlan Bengtson
Dr. Harlan Bengtson

Dr. Bengtson is a Professional Engineer with 30 years experience as an engineering professor, teaching fluid mechanics, thermodynamics and a variety of other mechanical and civil engineering courses. He currently has Professor Emeritus rank in the Department of Civil Engineering at Southern Illinois University at Edwardsville.


He has B.S., M.S., and PhD degrees in Chemical Engineering and is a registered Professional Engineer in Missouri. He is currently active in providing continuing education opportunities for engineers and is founder/manager of a website for engineering calculations spreadsheets, www.EngineeringExcelTemplates.com.


Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does 12 months access sound? After enrolling, you have unlimited access to this course for 12 months as often as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

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