Ray Hardee January 2017
Past Pump System Improvement columns have focused on piping systems made of one or two circuits.
Jim Elsey January 2017
The famous Swiss psychiatrist and psychotherapist Dr. Carl Jung is often quoted as saying, “What you resist persists.” I always took it to mean that because I had problems with calculus in college, I would always be in professional positions that would require me to be proficient in the subject.
Ray Hardee December 2016
In last month’s column, we discussed how to use a piping system model for operator training, system troubleshooting and improvements. This month, we will discuss one of the fundamental engineering principles used to build a piping system model.
Jim Elsey December 2016
End users frequently ask me, “How long will the pump operate?” Of course, my answer is, “It depends.”
Ray Hardee November 2016
In previous columns, we have discussed how a physical system can be simulated by developing an accurate model of the system. This month, we will explore how simulators in industrial applications can increase safety and system uptime.
Jim Elsey November 2016
You are driving down the highway in your car when a tire suddenly goes flat. You pull over and prepare to change the tire when, to your dismay, you discover that the spare has no air—and the jack is missing.
Lev Nelik November 2016
This column will provide feedback on a quiz published in my August 2016 Pumps & Systems column titled “Optimizing Pump Hydraulics: When Is It Important?” (Read it here) Readers were asked to estimate
Ray Hardee October 2016
For the last two years I have had the pleasure of writing Pump System Improvement columns for Pumps & Systems magazine. Each column has centered on a typical problem occurring within an operating piping system.
Lev Nelik October 2016
The objective of this month’s column is to show end users how to hydraulically evaluate their pump systems and determine the power required for the drivers to move the desired flow through the piping/process.
Jim Elsey October 2016
My July 2016 article (“Are You a Pump Ninja?”, see it here) was in the format of a quiz. The quiz was very popular with readers, so I have been asked to follow up with a few more questions.
Lev Nelik September 2016
When a pump experiences internal wear, its performance drops. Flow is reduced and efficiency plummets. But what happens to power? Does it drop, stay the same or increase?
Jim Elsey September 2016
It is the best of pumps; it is the worst of pumps. Horizontal split-case (HSC) pumps are used in most industries around the world to move large quantities of fairly clean fluids—usually water—at low to medium pressures. HSC design geometry poses numerous advantages and disadvantages for users.