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Comparing pump efficiency just got a whole lot easier thanks to a new rating system developed by the Hydraulic Institute (HI). For the first time ever, pump specifiers or purchasers can go directly to an online tool where they can compare the numerical efficiency scores of any pump….
Read MoreOne challenge to selecting a steam condensate return unit is the return temperature of the condensate after leaving the steam heat exchanger. This week we'll offer some suggestions to assist the engineer or designer...
Read MoreIn our last blog post, we introduced the PLEV, or Part Load Efficiency Value from Bell and Gossett. This week we look at some selections and how to use PLEV.
PLEV was created to give a weighted average of the pump efficiency for the HVAC and plumbing industry. This new efficiency average gives the engineer or designer an efficiency that is most likely a better representation of the actual...
Read MoreIf a picture is worth a thousand words then a pump curve must be worth several thousand.
Make no mistake, there’s a lot of information on a centrifugal pump curve like the one shown here. It’s no wonder that many newly practicing engineers are a little intimated by them.
By Chad Edmondson
A geothermal system installation at the ASHRAE headquarters in Atlanta, GA continues to bear out the efficiency merits of the technology – and ASHRAE is documenting all the details. JMP was thrilled to be a part of this project and helped the mechanical engineering firm, Johnson, Spellman & Associates, Inc., select both the geothermal heat pumps as well as Bell & Gossett inline circulating pumps.
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