Containment Cooling Wind Tunnel Tests

In London, Ontario, Canada's University of Western Ontario used its wind tunnel to test that winds -- especially high winds -- would not diminish cooling in the annulus of the containment while the natural convection and evaporative forces were doing their job. A detailed scale model of the AP600 was placed in the tunnel. The Ontario tests showed that wind was not a safety factor. The natural circulation of air occurs over the surface of the reactor shield under all wind conditions.