Ventilation
Fläkt Woods provided the ventilation solutions by supplying three immense fans for the tunnel. The axial flow fans measured 2.65m in diameter, were powered by 900 kW motors and ran at pressures of 3,800Pa.
Fläkt Woods ran one of the fans continuously to self destruct, to prove their capability of withstanding temperatures of up to 400°C for one hour. The fans incorporated guide vanes for flow straightening to achieve maximum performance and ran at 995rpm.
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