Visible Ventilation

Lillis Business School on the University of Oregon campus was completed in 2003 as one of the first LEED certified buildings on campus as a four-story addition connecting three preexisting buildings, including a pass through atrium, a cafe, public meeting rooms, classrooms, and offices. The building uses different ventilation strategies in different parts of the building, including 100 percent natural ventilation (no mechanical cooling or ventilation air) in the atrium and faculty offices on the north side, hybrid natural and mechanical ventilation and cooling in the classrooms, and 100 percent mechanical ventilation and cooling in the faculty offices on the south. To better understand how these modes occur, students created a series of animations to compare theory and their actual measurements of in the classroom.  This paper and ventilation project was presented by PhD candidate Tom Collins in Hong Kong at the Indoor Air 2014 Conference in Hong Kong in July 7–14, 2014.