Cooling the Tube Programme, London Underground
One of the
most well-known
Tubes in the world.
One of the
most well-known
Tubes in the world.
To design, manufacture and commission new tunnel ventilation equipment for the
refurbished Victoria Line Mid Shaft ventilation shafts.
Smoke extraction high temperature rated ventilation systems comprising of fans,
transitions, attenuators, dampers and VSD control system.
Range of 2-2.5m high temperature rated vertical fans, attenuators, dampers,
transitions and VSD equipment.
Over the years, the heat soaking capacity of the London underground clay has decreased considerably, making the tunnels hotter. In recent summer times the tunnel inside temperature are recorded as 30°C, whereas the same were 19°C in the 1900s. The most important factors leading to this heat are the aerodynamic drag, frictional losses, motor engines and other electrical and auxiliary systems due to the moving trains.
Mechanical ventilation through output shafts fitted with huge ventilation fans reduces this heat considerably, by sucking the hot air out.
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