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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


Pumping Prescriptions: What Happens to Power & Efficiency When a Pump Wears Out?

Pumps & Systems, Sept. 2016, by Lev Nelik.

"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? The answer to this question depends on how a pump wears internally. In extreme cases, when the impeller is completely worn, there will be no flow and hardly any power. But in many cases, tight clearance parts, such as wear rings and bushings, are the first to wear."

How IIOT Monitoring Improves Pump Maintenance

Flow Control, Jul 2016, by Brett Burger.

"The Industrial Internet of Things (IIoT) will eventually connect tens of billions of “things” businesses use to operate with other machines, the cloud, control systems and people. Pumps are squarely on the list of “things,” and like many other big-iron assets that do not generate high-tech publicity, they have much to gain with this surge of technology. Why do we need IIoT pumps? What does an IIoT-enabled pump look like?"

Facilitating Fermentation [Pumping Systems]

Pumps & Systems, July 2016, by John Wallace.

"California vineyard uses AODD [air-operated double-diaphragm]pumps for 6,000-gallon tanks to achieve up to 60 percent savings in energy and operating costs."

Pump System Optimization in Pulp & Paper: High-Value Target Applications

Pumps & Systems, July 2016, by Mike Pemberton.

"In most pulp and paper applications, energy and unscheduled maintenance are two of the largest components of ownership cost. For this reason, improving pump efficiency is key to pump system optimization. Although certain mechanical and control modifications can improve reliability, selecting the best hydraulic fit is an often overlooked approach to system optimization. Energy and reliability are two sides of the same coin: A good rule of thumb is that where there is excess energy beyond what is required to move fluid through the pipes, there will also be unreliability."

A Simplified Method of Determining the Efficiency of a Motor-Driven Centrifugal Pump

Pumps & Systems, July 2016, by Robert X. Perez.

"A common concern in processing plants is determining the pumping health—or efficiency—of centrifugal pumps. As pump impeller seals wear as a result of erosion and corrosion mechanisms, tight internal clearances open up and allow fluid to recirculate internally, gradually degrading performance. As wear progresses, a centrifugal pump will eventually become unable to perform its intended function. Periodically monitoring pump performance allows end users to identify internal degradation before a serious loss of capability occurs."

Evaluating Chilled Water Cooling System Components

Chiller & Cooling Best Practices, May 2016, by Joe Leichner.

"While the chiller is the heart of a chilled water system, its support system of components and controls are equally critical to maintain and manage to ensure the highest system efficiency levels are attained. Emphasis is often placed on the chiller since it is the most visible and typically the highest energy element of a chilled water system. Yet, if you look beyond the flanges, there’s an opportunity to improve delivery of chilled water to the airside or process loads and maximize system efficiency."

Why Turndown Is a Vital Part of Metering Pump Efficiency

Pumps & Systems, May 2016, by Jim Carling & J. Coogan Cameron.

"Whether at a municipal water treatment facility, a petrochemical plant or an offshore platform, operations that use chemicals for processing, treatment and production enhancement seek to increase efficiency and save money. Meaningful savings can result from ensuring that the chemicals used are not wasted. A good way to deliver these efficiencies is to properly leverage the turndown capabilities of metering pumps."

Choose the Most Reliable Pump Type for Your Application

Pumps & Systems, May 2016, by Lev Nelik.

"There is a common question I hear from groups: 'What is the most reliable pump we should use?' While this question may sound too general and perhaps impossible to answer because of a diverse range of application, the answer is actually not impossible."

Industry Prepares for U.S. Pump Efficiency Standards

Pumps & Systems, Mar. 2016, by Mark Handzel.

"Manufacturers will need to adapt to new rules for clean-water pumps by 2020.

Extend Asset Value by Applying Protective Coatings to Pump Wet Ends

Pumps & Systems, Mar. 2016, by Stephen Bowditch.

"This technology can improve pump maintenance programs by lowering operating costs through extended mean time between repairs."
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