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Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.


Category: Pumping/Pumps


Understanding Vacuum Pump Lubricants

Blower & Vacuum Best Practices, Sep. 2015, by David Mitchell.

"“What is the best type of oil to use in my vacuum pump?” is a common question for sure, and one that may often yield confusing and conflicting answers. The rule of thumb is that it is always best to follow OEM recommendations, but why do they recommend the lubricants that they do? For the purpose of this article, we will focus on some of the general industrial vacuum pump applications and their lubricant choices."

Energy Efficiency in Water & Wastewater

Pumps & Systems, Sep. 2015, by Jeff Bergman.

"VFDs [Variable Frequency Drives] can reduce energy consumption and water loss in variable pumping systems."

Validate Sealing Systems for Optimized Performance

Pumps & Systems, Aug 2015, by Larry Castleman.

"Sealing systems can play a vital role in equipment performance and are considered critical components in the validation process of a design. Engineers should closely examine the sealing systems used in their equipment, because they do everything from preventing seal leakage and extending hydraulic cylinder life to lowering dynamic friction and controlling hydraulic motor position."

Optimize High-Energy Pumps With Improved Impeller Design

Pumps & Systems, Aug 2015, by Bob Jennings & Dr. Gary Dyson.

"The rising cost of electrical power has caused many industrial plants to shift their focus to energy consumption. Plants often run pumping equipment continuously, and much research has pointed to opportunities for cost savings by optimizing pumping equipment. When evaluating the potential for energy savings, end users cannot consider a pump in isolation. The suitability of the pump for the system within which it operates is vital. Even the best designed and most efficient equipment offers power-saving potential if it is run off its best efficiency point (BEP) in a system for which it is ill-applied."

Balancing Software Conserves Energy in Multiple-Pump Systems

Pumps & Systems, Sep. 2015, by Kurt Bihler.

"Each adjustable speed drive can find its own set point independently without stressing the entire system. Process control through traditional adjustable speed drives (ASDs) with centrifugal pumps has an inherent problem of attempting to use a linear equation to solve a non-linear problem. Common ASD controller software provides an estimated speed to achieve a desired set point. But when the target speed is reached with this method, the set point is not available because the answer is on an unknown non-linear curve."

10 Key Facts About Reciprocating Pumps

Pumps & Systems, July 2015, by Gary Dyson and Herb Tackett Jr.

"While centrifugal pumps are the subject of much training, the dwindling population of reciprocating pumps has led to a loss of understanding of this pump type's unique system design requirements. Centrifugal pump specifications are now commonly and incorrectly applied to reciprocating pumps, which can lead to significant reliability problems. End users should consider these 10 key facts about reciprocating pumps that can influence reliability and operation."

Understanding Piping System Controls (Part 1 of 2)

Pumps & Systems, July 2015, by Ray Hardee.

"Users have several options for controlling piping systems. Previous columns established that every piping system is composed of pump elements, process elements and control elements. This column will focus on the control elements, which improve the quality of the product. Control elements can be either passive or active."

2 Simple Steps to Choosing the Right Motor

Pumps & Systems, June 2015, by Mike Stockman.

"Every pump industry professional faces the challenge of choosing the most efficient system for a particular application. This process is complicated by the uncertainties of efficiency regulations, mandates and parameters, especially when efficiencies alone do not tell the whole story. Sometimes the most efficient motor is not the best choice. By using two simple calculations, pumping professionals can determine the best motor—as well as the best pump and drive—for each application."

Developing a Pump System Assessment with Energy Cost Balance Sheets

Engineered Software, Inc., May 2015.

"The first step in the assessment involves developing an Energy Cost Balance Sheet for the way the system is currently operating.  We can then identify system improvement alternatives and develop an Energy Cost Balance Sheet for each proposed alternative.  These results provide the plant’s financial management team with the data needed to develop a course of action based on the potential risk/ reward."

A Financial Justification for Pumped System Improvements

Engineered Software, Inc., Feb. 2015.

"This month we will look at the value of starting a proactive Pumped System Improvement program in which major pumped systems are evaluated on an ongoing basis. Prior to starting any new program there must be financial justification; this article shows how using readily available plant production data."
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