Dual fan and duct ventilation system at Canadian Space Agency.

Canada's Space Centre in St Hubert, Quebec, is a new 27,870 m2 complex which was awarded first place in the ASHRAE Technology Awards (1996) for new commercial buildings. A dual duct ventilation system was installed to provide a comfortable and pleasant research environment. Dual duct systems, which are the heart of the mechanical concept, provide high indoor-air quality, along with design flexibility, energy efficiency and low capital costs. During the monitoring period, energy savings amounted to 839,000 kWh/year (electricity) and 275,000 m3/year (natural gas), when compared to a conventional system. The payback period is 2 years