Using multiple pumps that run in sequence—also known as running a lead-lag system—is a common way to meet varying pump system demand.
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The U.S. Department of Energy (DOE) is empowered by congress to review efficiency regulations for covered products every five years.
Electric motor systems with variable frequency drives (VFDs) are becoming more common in large industrial systems because VFDs provide higher system efficiency, greater operational flexibility, im
When thinking of a food manufacturing facility, many people may envision a lockdown area in which all personnel must wear full-body decontamination suits and where every internal surface of the fa
Because of advanced control capability and potential energy savings, the use of adjustable frequency drives (AFDs) for motor control is expanding rapidly throughout many industries and environment
In the industrial sector, cost is often the driving force when evaluating capital projects.
Intelligent motor control centers (MCCs) provide the data to support safe, reliable and more efficient operations, making information available for process monitoring, advanced diagnostics and pre
I hope that my last column (Pumps & Systems, September 2014) provided a clea
Many industries use variable frequency drives (VFDs) with induction motors.
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For those of you old enough to remember Lawrence Welk, you’ll notice that the title of this brief column is the final quote from his show’s closing song. I am still a loyal fan of his reruns today.
Last month’s column explored the effects that oversizing a pump has on the motor driving the pump, the adverse results of a pump no longer operating at its best efficiency point (BEP) for extended periods of time and situations in which a design margin could increase cost of ownership.