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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: HVAC/R

HVAC/R


Hydronic Heat Recovery in Health Care

ASHRAE Journal, Jun 2014, by Jeremy McClanathan.
http://tinyurl.com/lkd6688

"Swedish Issaquah, a 350,000 ft2 (32 500 m2) hospital located in Issaquah, Wash., uses a hydronic heat recovery system to achieve a 50% energy savings compared to an average hospital in the Pacific Northwest."

Digital Controls Optimize Performance [Airside Economizers]

Heating Plumbing Air Conditioning, May 2014, by Adrienne Thomle.
http://www.hpacmag.com/news/adrienne-thomle-airside-economizer/1003079977/?&er=NA

"The airside economizers of today bear little resemblance to their predecessors."

VAV vs. Radiant [Cooling]: Side-by-Side Comparison

ASHRAE Journal, May 2014, by Guruprakash Sastry & Peter Rumsey.
http://tinyurl.com/pymv8p2

"Infosys, one of India’s top three software companies, implemented a program in 2011 to find the best way to cool its buildings, while creating lower energy buildings that better suited the needs of its employees. The resulting building, Software Development Block 1 (SDB-1) in Hyderabad, not only became the first radiantly cooled building in India, but also resulted in the world’s largest HVAC side-by-side comparison."



Air Barriers: Expectations vs. Reality

Environmental Design & Construction (EDC), May 2014, by Richard Scott and Donald B. Snell. (Requires free registration to view full-text.)
http://www.edcmag.com/articles/95601-air-barriers-expectations-vs-reality?v=preview

"Air barriers are expected to be beneficial to owners of green buildings, but improper specification and installation can cause problems." Includes a chart that compares air barrier standards.


When Woody Biomass Brings Music to Your Ears!

TimberWest, Mar./Apr. 2014, by Barbara Coyner.
http://www.forestnet.com/TWissues/2014_march_april/biomass.php

"...did you know that a [Alaska] school district that utilizes woody biomass has saved enough money on heating and energy costs to hire a full-time music teacher AND build and heat a commercial greenhouse?"

ERVs Gain Traction in New and Old Projects

Air Conditioning, Heating & Refrigeration News, Apr. 21, 2014, by Jen Anesi.
http://www.achrnews.com/articles/126434-ervs-gain-traction-in-new-and-old-projects

"The more outside air a building pulls in, the harder the HVAC system will have to work to condition that air. Heat recovery ventilators (HRVs) help mitigate that energy loss by extracting heat from exhaust air and applying it to the incoming fresh air. Similarly, energy recovery ventilators (ERVs) extract both heat and humidity from exhaust air in order to pre-treat fresh air." Article includes a "Product Showcase" of some of the new HRV and ERV products.

Balancing Home-Performance Demands with Ventilation Needs

Air Conditioning, Heating & Refrigeration News, Apr. 21, 2014, by Jen Anesi.
http://www.achrnews.com/articles/126433-balancing-home-performance-demands-with-ventilation-needs

"While new homes are being built tighter than ever, more and more contractors are helping their customers identify and rectify sources of energy loss in their homes, ensuring future energy savings and comfort for homeowners. But, as contractors seal up these homes, they also need to consider proper ventilation, avoid common mistakes, and follow industry protocols to ensure occupant health and safety."

What Owners Need to Know About ... Evaporative-Cooling Equipment

Heating/Piping/Air Conditioning Engineering, Apr. 2014, by June Galloway. (Free registration is required to view full-text of article.)
http://hpac.com/air-conditioning/what-owners-need-know-about-evaporative-cooling-equipment

"Evaporative-cooling equipment is selected to provide a fluid (usually water) to a system at a certain temperature and flow rate. If the temperature of the fluid delivered to a system (chiller) is higher than desired, the system will suffer increased wear and tear and usage. Decreasing leaving-water temperature by just 2°F can lower electricity expenditures by 6 percent.

Routine inspection and maintenance is paramount in achieving desired temperature and flow rate, and it plays an important role in extend operating life
."

Making the Case for Zero-Leak Ducts

Journal of Light Construction, Apr. 2014, by Mike MacFarland.
http://www.jlconline.com/hvac/making-the-case-for-zero-leak-ducts_o.aspx

"Installing ducted distribution systems that fully contain and deliver all of the air that moves through to the intended locations offers many benefits for the builder, homeowner, installing contractor, and the environment."

The Long Winding Road Toward Efficient Furnaces

American Council for an Energy-Efficient Economy (ACEEE), Apr. 24, 2014, by Andrew deLaski.
http://aceee.org/blog/2014/04/long-winding-road-toward-efficient-fu

"The struggle for improved gas furnace efficiency standards may have an end in sight. Yesterday, the U.S. Court of Appeals for the D.C. Circuit approved a settlement between the Department of Energy (DOE) and an industry trade group. In the settlement, DOE agreed to pull back efficiency standards completed in 2011 and develop new standards in their place within two years. This new rulemaking represents another opportunity to set strong furnace standards which will save energy and cut consumers’ heating bills."

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The Energy Newsbriefs Blog is a continuation of the weekly Energy Newsbriefs. Please bookmark this site and return frequently. Although we will not be accepting comments from within the Blog, we would be happy to hear from you by email at library@energy.wsu.edu

Archives of the weekly Energy Newsbriefs, from Oct. 2012 – Jan. 6, 2014, may be found on the WSU Energy Library web page.

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