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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: Motors/Drives

Motors/Drives


Troubleshoot Hot Hydraulics

Maintenance Technology, July 2015, by Jane Alexander.
http://www.maintenancetechnology.com/2015/07/troubleshoot-hot-hydraulics/

"High oil temperatures in industrial hydraulic systems can lead to a world of hurt. Don’t let them get you down."

Is a VFD a Cost-Effective Option for Your Application?

Pumps & Systems, July 2015, by Mark Berube.
http://www.pumpsandsystems.com/motors/july-2015-vfd-cost-effective-option-your-application

"While variable frequency drive (VFD) technology can significantly increase system efficiency by controlling pump speed, not every application requires a VFD. To determine when to apply this technology, end users must conduct detailed calculations to verify the cost-effectiveness of using a VFD."

VFD Trends and Solutions for Drive Systems

Plant Engineering, June 2015, by Alex Ward.
http://www.plantengineering.com/single-article/vfd-trends-and-solutions-for-drive-systems/c655baa26fc5bd8e9e7a4e700ce2b7c5.html

"The increase in variable frequency drive (VFD) installations across the globe has meant that drives are being applied in more challenging system environments. Not only is the environment challenging, but drives also have a few inherited issues that can limit the overall system performance. Harmonics mitigation, filtering voltage spikes are two key issues."

2 Simple Steps to Choosing the Right Motor

Pumps & Systems, June 2015, by Mike Stockman.
http://www.pumpsandsystems.com/motors/june-2015-2-simple-steps-choosing-right-motor

"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.
http://eng-software.com/company/press/2015/5/developing-a-pump-system-assessment-with-energy-cost-balance-sheets/

"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."

Efficient Pumps And VFDs Bring Fast Payback On A Rhode Island [Water Treatment] Plant Upgrade

Treatment Plant Operator, Oct. 2014, by Chris Champi, Rob Little, and Mark Donovan.
http://www.tpomag.com/editorial/2014/10/efficient_pumps_and_vfds_bring
_fast_payback_on_a_rhode_island_plant_upgrade


"A Rhode Island town expects payback of 3 1/2 years on an extensive project to upgrade inefficient pumps and install variable-frequency drives."

Improve Pump Operations with VFD Network Multiplexing

Engineered Systems, Oct. 2014, by Steven Peterson.
http://www.esmagazine.com/articles/96788-improve-pump-operations-with-vfd-network-multiplexing

"From setting up node addresses to the nuances of lead and lag pump operation, explore the opportunities for tailored, more efficient performance and increased redundancy."

Dealing With Motor Failures: Common Causes and Solutions

Maintenance Technology, Aug. 2014, by Thomas H. Bishop.
http://www.maintenancetechnology.com/2014/08/dealing-motor-failures-common-causes-solutions/

"If you want to make a plant manager’s day, just say: “Production’s down because a motor failed.” Fortunately, such situations can usually be overcome with some relatively simple techniques and straightforward solutions to protect the bearings and stator windings. These two vulnerable components are root causes of the vast majority of motor failures."

Evaluating Power-Demand Reduction With VFD-Controlled Systems

Heating, Piping, Air Conditioning, Aug. 2014, by Alexander L. Burd and Galina S. Burd.
http://hpac.com/motors-drives/evaluating-power-demand-reduction-vfd-controlled-systems

Discusses the "the impact of relative dynamic-pressure losses and other factors on overall power demand and energy savings."

Streamlined Motor Management System Boosts Biomass Power Generation [Paper Mill]

Pumps & Systems, Aug. 2014, by Matthias Borutta.
http://www.pump-zone.com/motors/august-2014-streamlined-motor-management-system-boosts-biomass-power-generation

"Trusted gateway connections allow for system growth, efficiency and consistent maintenance at Swedish paper mill.

Paper production requires large amounts of power. The Smurfit Kappa plant in Piteå, Sweden, uses its own biomass boilers to meet part of its energy needs. The cleaning system in place for the high-performance steam generator includes a specialized motor management solution to ensure uninterrupted motor operation."
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