#### Calculating Velocity in Pipe Flow: Summary

The answers to the ConcepTests are given below and will open in a separate window.

##### Key points from this module:

- The mechanical energy equations includes head loss which accounts for friction in the flow.
- Major head losses consist of straight pipe while the minor losses take into account changes in the pipe, including bends and turns as we as valves, pumps, etc.
- Friction factors can be determined from the Moody chart.

##### From studying this module, you should now be able to:

- Simplify the energy equation to be able to find velocity.
- Calculate velocity given pressure drop or other variables.
- Use Goal Seek or iteration to find a friction factor.

*Prepared by Janet deGrazia, Department of Chemical and Biological Engineering, University of Colorado Boulder*