Change Pump Speed to Reduce Energy

The pump Affinity Laws are alive and well. If you don't recall those laws or how your pumping systems might be trying to break them, don't dig out your old engineering text to refresh your memory.

The basics are that pump flow, horsepower, and pressure are all related to the rotational speed of the pump. One of the best hands on explanations of how it all works was provided by the Hydraulic Institute in a Free Webinar which was recorded for viewing here: https://pumpsevents.webex.com/pumpsevents/lsr.php?AT=pb&SP=EC&rID=1658517&rKey=599e4b559dcbc186



While this video doesn't give you all the answers on how to make design selections, it does demonstrate the principals that are at work in efficient pumping. Armed with this knowledge, you can contact your local pump representative to collect specific information and guidance on whether a variable speed pump option will save your process money.

If energy savings can be demonstrated, consider applying for ARRA funding or local energy funding to help make a capital investment that will truly pay back in a very short time.