In the last Monday Morning Minutes post, we introduced the PLEV, or Part Load Efficiency Value from Bell and Gossett. This week we look at some …
Bell and Gossett Part Load Efficiency Value
The last three Monday Morning Minutes have introduced the U.S. Department of Energy 2020 pump standards. The Standard looks at efficiency of pumps equally at …
New Pump Efficiency Standards Part 3: Calculating PER Values
Under the DOE’s new efficiency standards for pumps, all Pump Efficiency Rating (PER) values use a full size or maximum impeller for a given pump …
New Pump Efficiency Standard Part 2: The Pump Energy Index (PEI)
Now that the U.S. Department of Energy (DOE) has published the first ever Energy Conservation Standards for Pumps, let’s take a look at some of …
New Pump Efficiency Standards Part 1: They’re Here, Now What?
Heat pumps have them. Air conditioners have them. Even light bulbs have them. And now, for the first time in history, clean water pumps have …
Two Secrets for Bell and Gossett GPX Plate Heat Exchangers
Our recent R. L. Deppmann Monday Morning Minutes (MMM) articles have introduced a number of velocity considerations in gasketed plate heat exchangers. This week I’ll share two …
Velocity Limits in Gasketed Plate Heat Exchangers – Part 4
Plate exchangers such as the Bell and Gossett GPX series have significantly higher velocity limits than shell and tube heat exchangers, but there are still …
Minimum Velocity for Heat Exchangers with Glycol – Part 3
In part 1 and part 2 of this series, we discussed maximum and minimum heated water velocities in Bell & Gossett SU heat exchangers with standard …
Minimum Velocity in Heat Exchangers – Part 2
Shell and Tube heat exchangers are often used in institutional steam-to-water heating applications. This week’s Monday Morning Minutes post looks at minimum velocities in Bell & Gossett …
Maximum Velocities in Heat Exchangers – Part 1
Shell and Tube heat exchangers are often used in institutional steam-to-water heating applications. We recently received a call from a consulting engineer asking what the …