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Inside Federal Center South, an ASHRAE award-winning project

Ben Welter - Wednesday, February 11, 2015

Tom Boysen Jr.In December, a U.S. Army Corps of Engineers office building in Seattle was one of nine projects recognized for innovative design with an ASHRAE Technology Award. Federal Center South received first place in the new commercial buildings category. 

The Seattle Daily Journal of Commerce takes a closer look at the project, including the months of tweaking needed to reach the energy-use guarantees made by the general contractor, Sellen Construction.

“This is not your father's 1960s pickup truck,” said Tom Boysen, senior project manager. “This thing has at least four gears of cooling and two gears of heating.”

The complex system includes heat-recovery chillers that extract heat from a thermal storage tank to warm the building in the morning, when demand is high. The rooftop tank is filled with 2-foot-long panels containing phase change material that freezes and thaws at 55 degrees, serving as a battery for storing heat.

https://www.djc.com/news/en/12074091.html

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