CBE 30355 - Lecture Notes - Dec. 5, 2017
Announcements
Class notes
Scanned Notes
The main points of the lecture were
Goals:
After this class you should be able to:
- Calculate head loss in a piping network.
- Read a pump curve.
- Know what NPSHR is and how to avoid frying a pump.
Reading
- The class notes.
- BS&L, chapters 6&7
Additional Readings:
There are many sources of information on sizing pumps and designing piping networks
available on the web (although they do tend to disappear over time!). A comprehensive one is
given here.
It would be a -really- good idea to review it if you are ever in charge of sizing a pump!
Pump curves are also available on-line. As as example, those for Sykes pumps (such as we
looked at in class today) are given here.
Other links are
available on the web for pipe fittings. A useful one is given
here. Examination of
the data shows the K factors -do- change a little bit with diameter, but not very much!
Pumps and Pipes Guide:
I've put together some brief, condensed notes on how to determine unknowns in piping systems for the three cases of unknown required head (e.g., pump requirements), unknown pipe diameters, and unknown flow rates. These are guides to applying the principles discussed in class, and are given below:
Demonstration:
David.T.Leighton.1@nd.edu