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One of the greatest engineering
feats in the world, the €1.5
billion Route 8 highway project
in Hong Kong, will be making a
name for itself in the
ventilations stakes with the
installation of three immense
fans from Fläkt Woods.
Under the contract the
company is supplying three
fans for the 1.2km long Nam
Wan tunnel, which each
measure 2.65m in diameter, are
powered by 900kW motors and
run at pressures of 3,800
pascals.
Because the fans will be used
for smoke extraction and
ventilation, testing is critical,
and as part of the contract Fläkt
Woods will run 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 incorporate guide
vanes for flow straightening to
achieve maximum performance
and will run at 993 rpm.
Targeted for completion by
2008, Route 8 will link up busy
container ports and the airport
with the North East New
Territories. It will also connect
the Lantau Link to the
West Kowloon Highway and
provide much needed relief for
other road networks and
tunnels.
By 2010, more than 155
kilometres of road tunnels will
have been built in China.
