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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


Study Proves Potential Energy Savings of AODD Pump Controls

Compressed Air Best Practices, Jan/Feb 2016, by Clinton Shaffer.

"Air-operated double diaphragm (AODD) pumps are common to many manufacturing facilities. As estimated by veteran compressed air auditor Hank van Ormer of Air Power USA, approximately 85 to 90 percent of plants in the United States have AODD pumps. They are used for all kinds of liquid transfer applications, like those found in chemical manufacturing, wastewater removal, and pumping viscous food products. As ubiquitous as they are, AODD pumps are also commonly misused."

Hydraulic Institute Supports the Pump Industry as the DOE Issues Final Rules on Test Procedures and Energy Conservation Standards For Commercial And Industrial Pumps

Water Online, Jan.. 6, 2016.

"The Hydraulic Institute, North America’s largest pump trade association, announces the release of two final rules (1) The Energy Conservation Standard and (2) The Test Procedure for Commercial and Industrial Pumps by the United States Department of Energy (DOE). The rulings are now available through the HI website. The compliance date for the Energy Conservation Standard will be 2020 and DOE estimates it will save 0.29 quadrillion BTUs (2020 – 2050)."

Choosing the Proper VFD can Limit Harmonics

Pumps & Systems, Dec. 2015, by Jeffery Lovelace.

"Facilities predominantly using these drives may face concern from power utility companies. Variable frequency drives (VFDs) have vastly evolved during the last 25 years.

Pumps: State of Global Efficiency Standards (Part 2 of 2)

Pumps & Systems, Dec. 2015, by Lev Nelik.

"Part 1 of this series discussed the lack of a formal, comprehensive global standard on pump efficiency and the importance of understanding the difference between actual field efficiencies of installed pumps and the initial original equipment manufacturer (OEM) efficiencies. As noted in part 1, studies show that the efficiencies of installed pumps are commonly reduced by 10, 20 and often close to 50 percent below the OEM-quoted (rated point). Several factors can contribute to this trend...."

Pumps: State of Global Efficiency Standards (Part 1 of 2)

Pumps & Systems, Nov. 2015, by Lev Nelik.

"Despite an increasing focus on energy savings around the world, no formal standard—that is also simple and practical—exists. A recent pump energy conference in the Middle East took a comparative look at available resources on the subject in the U.S., Europe, Israel and other areas of the world. Several fledgling documents on formalizing the approach are in the works, but nothing is complete to the point of availability to the pumping community."

System Considerations for VSDs in Industrial Machinery

Pumps & Systems, Nov. 2015, by Paul Stavrou.

"The changing landscape of hydraulic drives is leading many fluid power specialists to quickly adapt to VSDs."

Choosing Between Soft Starters & Adjustable Frequency Drives

Pumps & Systems, Nov. 2015, by Nichole Angiola.

"Motors often require large amounts of energy when quickly accelerating to full speed. Using soft starters and adjustable frequency drives reduce in-rush currents and limit torque—protecting valuable equipment and extending the motor's life by reducing motor heating caused by frequent starts and stops. Choosing between a soft starter and an adjustable frequency drive (AFD) often depends on the application, system requirements and cost, both for initial startup and over the life cycle of the system."

System Vibration Monitoring Is Essential to Predictive Maintenance

Pumps & Systems, Nov. 2015, by Mike Pemberton & William Livoti.

"In today's industrial landscape, remote monitoring of rotating assets is critical for reliable operation. Specifically, vibration data from pump bearings and other monitored points allows users to analyze the data spectrum and identify problems, such as shaft misalignment and pump cavitation. The effective use of vibration technology begins within the context of a well-managed predictive maintenance program."

What Owners Need to Know About... Pump Operation and Maintenance

HPAC Engineering, Oct. 2015, by Mark Handzel.

"When the efficiency of a facility’s plumbing and HVAC systems is maximized, building owners realize energy- and operational-cost savings. Optimal efficiency can be achieved through seasonal maintenance and best practices regarding water pumps."

8 Reasons Pumps Operate Off Their Curves

Flow Control, Oct. 30, 2015, by Randy Riddell.

"The plant is having process issues, and the culprit appears to be a process centrifugal pump. The area production manager has asked you to check the pump to see if it is operating on its curve. “Pump won’t pump, make pump pump,” he says. Sounds like a reasonable request. However, other questions need to be answered, such as: Where is the pump running on its curve? If it is not running on its curve, why?"
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