New Zealand Commercial Design Trends Series NZ Commercial Design Trends Vol. 30/12 | Page 125

Preceding pages:Work in the Ecodome includes research on urban aquaponics and indoor crop plants as well as a clean energy lab. A wing of the residence hall runs behind the greenhouse with some lucky students having dormitory windows opening into the dome. Left:Running the numbers – glass floorplates allow students to see the underground geothermal system in operation. Changes in water temperature are on constant display. In terms of green building alone the LEED Gold-rated design is an object lesson for students. Before the facility went up, a geothermal system was laid down. Ninety-one wells plunge water to a depth of 152m to be heated or cooled by the earth’s ambient temperature and sent back to the surface for energy reuse within the institute. This is not only the largest geothermal field of its kind in Chicago, it is also unusual for being directly under the floors of the academic structure – a placement made necessary by the tight urban location. Glass floor panels allow students to see this eco-friendly strategy in operation first hand. Running LCD displays show the water’s temperature as it descends and surfaces. The Ecodome, looking a little like a giant’s glass roll-top desk, is shaped to optimise passive ventilation – rising hot air is drawn out of the top of the greenhouse, while computer-controlled vents allow cooler air to enter from below. This helps air flow through the space without mechanical assistance. The otherwise inoperable curving facade is also designed to maximise solar gain and collect and channel rainwater, as do the green roofs on the Right:The institute café will serve produce grown in the wintergarden, or Ecodome, next door. Lower right:The student commons and café are partly within the Ecodome to offset heating costs and provide an immersive experience. search | save | share at trendsideas.com 117