For the past three decades, the Energy Studies in Buildings Laboratory (ESBL) at the University of Oregon has been focusing on how to reduce a building’s energy load while bringing more light into the interior.
This past April, ESBL and local architecture firm SRG Partnership took another step toward that goal with the opening of a new library at Portland Community College. The 40,000-sf library is equipped with four “cones of light,” spherical reflectors made from extruded aluminum that distribute daylight from the library’s third floor to illuminate the second.
Kent Duffy, an SRG Principal, says that the cones, which spread from five feet in diameter at the top to nine feet at the bottom, were preferable to a daylight shaft from the roof, which would have obstructed the third floor.
GZ (Charlie) Brown, ESBL’s Director and Professor of Architecture at the college, says the library is cooled by a passive energy system that obviates the need for air-conditioning. The windows on the second floor are left open at night to cool the building’s mass. During the day, the windows are closed to allow the building mass to cool the interior. The cones help circulate the cool air.
Duffy and Brown say it took some doing to get the college to sign on to the cones of light, which were only included midway through construction. “Everyone is reluctant to be the first to try something new,” says Brown.
Also on the library Building Team: PAE (mechanical engineer), Catena (SE), Keylight + Shallow (lighting), O’Neill/Walsh Community Builders (CM), and Inline Commercial Construction (GC).
Read about more innovations from BD+C's 2014 Great Solutions Report.
Related Stories
| Apr 10, 2013
6 funding sources for charter school construction
Competition for grants, loans, and bond financing among charter schools is heating up, so make your clients aware of these potential sources.
| Apr 10, 2013
23 things you need to know about charter schools
Charter schools are growing like Topsy. But don’t jump on board unless you know what you’re getting into.
| Apr 9, 2013
FMI predicts 8% rise in construction put in place for 2013
FMI, the largest provider of management consulting and investment banking services to the engineering and construction industry released today its Q1-2013 Construction Outlook. The forecast for total construction-put-in-place for 2013 continues to show an increase of 8% over 2012 levels.
| Apr 8, 2013
Most daylight harvesting schemes fall short of performance goals, says study
Analysis of daylighting control systems in 20 office and public spaces shows that while the automatic daylighting harvesting schemes are helping to reduce lighting energy, most are not achieving optimal performance, according to a new study by the Energy Center of Wisconsin.
| Apr 6, 2013
Lord, Aeck & Sargent and Urban Collage merge
In a move that brings full-service planning expertise to its already well-established architecture practice, Lord, Aeck & Sargent (LAS) has merged with Urban Collage (UC), one of the largest urban and campus planning and design firms in the Southeast. Combining these firms’ talents was made official today. UC plans to retain its name for the foreseeable future.
| Apr 6, 2013
First look: GlaxoSmithKline's double LEED Platinum office
GlaxoSmithKline and Liberty Property Trust/Synterra Partners transform the work environment with the opening of Five Crescent Drive
| Apr 5, 2013
Bangkok gets a leaning tower, that may topple
A seven-story apartment tower under construction in Bangkok has started to tilt and is on the verge of toppling.