It was serendipitous that my keynote at the Pathways 2 Sustainability Conference was in the Telus Spark Science Center. The HVAC system was designed by the Calgary office of Dialog who have described the IEQ systems as;
“Along with lots of natural Calgary light and smart water use, the building design brings fresh air to every room. Rather than a typical, forced-air ventilation and cooling system, the building incorporates displacement ventilation and radiant panels to distribute fresh air and highly effective heating and cooling for visitor comfort. The atrium and extensive lobby areas are heated and cooled with a radiant chilled/heated slab system for a non-intrusive but highly effective conditioning system. Underseat displacement ventilation is provided in the 250-person IMAX theatre for optimum thermal comfort and ventilation effectiveness.”
You can see some of the interior photo’s at our photo library https://twitter.com/healthyheating
Interestingly, the HVAC zone for the exhibit hall (converted into the P2S2013 conference space) was tested beyond its functional capacity as over 250 delegates filled a space likely designed for less. (hopefully someone from Dialog will show up and correct my assumption). Despite the load, the thermal comfort was well beyond most conference halls that I have visited (and there have been hundreds). The air quality not so much. As the occupant load increased it was necessary to open the adjoining doors connecting a large open hallway to the conference room and that one simple solution seemed to do the trick for most of the attendees.
The point being - despite a heavy occupant load during three days of rain the radiant cooling panels never once condensed as the air system was capable of maintaining a lean air mixture.
I really like how the Architectural/Interior Designers and Mechanical Engineers incorporated the ventilation columns into the space – very nice.
Brad Struble Telus Spark representative and director of design gave us the tour and did a great job explaining the project as well as helping adapt the space to the conference and for the adaptive measures to help maintain the indoor environmental quality.
You can learn more about the project including the radiant based HVAC system from this video (can view in Google Chrome).
My keynote slides will be accessible early next week...I'll let you know the URL via this blog, our Linked-In page and twitter feed.
Final note: Lisa Fox and her team did a fabulous job organizing the event and workshop - well done!