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Energy Newsbriefs

Articles for June 17, 2013

ENERGY NEWSBRIEFS is a weekly current awareness service provided by the WSU Extension Energy Program Library and written by Angela Santamaria, WSU Energy Library Manager, to assist users in tracking developments in the energy field. To view past issues or to subscribe to receive an email notification of the publication of a new issue, go to the Energy Newsbriefs home.

Please be aware that although every URL is checked for accuracy prior to the publication of Energy Newsbriefs, URLs are, for various reasons, subject to change. Further, servers sometimes fail to connect to working URLs.


"Condenser Water System Components" by Mick Schwedler and Beth Bakkum, both of Trane, was published in the April 2013 issue of HPAC Heating, Plumbing, Air Conditioning Magazine. The components – cooling towers, condenser water pumps, and chillers – are described, with attention given to how they function in changing environments.


"The Art of Lighting," by Aaron Seward, was published in the March/April 2013 issue of A∙L Architectural Lighting. It is a case study of the lighting project for the newly-relocated Barnes Foundation's world-famous collection of post-impressionist paintings.

"The LED Dimming Dilemma" was written by James Brodrick, Ph.D., Solid-State Lighting Portfolio Manager for the U.S. Department of Energy; it was published in the April 2013 issue of EC&M (Electrical Design, Construction & Maintenance). To date, dimming can be a problem for LEDs. The author explains why this is the case and cautions that the best way to know how the dimmable LED will perform is to test it in a mock up. He includes a link to "Dimming LEDs: A Work in Progress" a manufacturer guidance sheet for the purchase of products, by brand name and lighting type, which includes the author's cautions.


The following two articles were published in the May 2013 issue of Power:

  1. "Small Hydro, Big Opportunity" is a five-Web-page article by David Wagman, Executive Editor of Power; it discusses how the U.S. appears to be moving toward exploiting the energy-generation potential of small hydro projects of 50 MW or less. The approach taken by the U.S. House of Representatives is to reduce regulatory demands; a bill unanimously passed by that body is to be considered by the U.S. Senate, as well.
  2. "Germany’s Energy Transition Experiment" is a six-Web-page article by Sonal Patel, Senior Writer at Power. It describes the country's planned transition to a non-nuclear energy future dependent upon conservation and renewables by 2050.


The following five articles were published in the May 2013 issue of Pumps & Systems:

  1. "Drives Enhance Energy Efficiency in Wastewater Aeration" was written by Jim Klauer, Danfoss. It is a case study of the upgrades to the blower motors in the water treatment plant of the small city of Mayer, Minnesota. Variable frequency drives were the key to more efficient blower operation.
  2. "Efficient AODD Pump Operation," by Scott Driscoll, Sentrinsic, Inc., explains the proper use of air operated double diaphragm (AODD) pumps. They are built to run dry in certain applications, but they were never designed to run dry on a routine basis.
  3. "Energy Savings with a Servo-Electric Pump Drive" was authored by Harald Poesch, Siemens. A drive system comprised of a servomotor with a hydraulic pump greatly enhances performance and dramatically improves energy efficiency.
  4. "Pump Design for Reduced Costs & Efficiency" was written by Mehrdad Zangeneh, Ph.D., University College London, Advanced Design Technology (ADT), TURBOdesign Technology (TDT). Trial and error design is replaced by 3-D Inverse Design with excellent results.
  5. "Replacement Submersible Pumps Increase Lift Station Efficiency" is a two-Web-page case study of the water and wastewater utilities' Lift Station No. 9 at Thief River Falls, Minnesota. Cheap, but of poor quality, two failing pumps, purchased from a company with little customer service, were replaced with efficient, reliable ones.


"Spring and Summer Energy-Saving Tips" is a Web page from the Energy Efficiency and Renewable Energy Office of the U.S. Department of Energy. The site offers many tips for energy savings for the warmer months.


"Ecotech Institute's Clean Jobs Index Shows the U.S. Had Nearly 750,000 Clean Job Openings in First Quarter of 2013" is an article posted on the Ecotech Institute's website on May 7, 2013. It reports on the data collected by Ecotech's own Clean Jobs Index. The interactive map on the opening page of the Clean Jobs Index shows that the two states that are leading the country in new clean jobs are Oregon and Washington.

Past issues of Energy Newsbriefs are available here. Generally, subscription information for the journals cited above can be found at the home page of their web sites. © 2013 Washington State University Extension Energy Program. This publication contains material written and produced for public distribution