Cable & Wireless Switch in Falkland Islands cooled by ‘fresh
air’
On the tiny Falklands Islands in the South Atlantic,
Airedale has worked with Cable & Wireless to supply a
precision control, free-cooling solution for the
Islands’ new IP-based telephone exchange in Stanley.
Consistently low ambient temperatures ensure that
Airedale’s Ecotel Indoor units are operating on
free-cooling virtually all the time. Very little, if
any, mechanical cooling is used and substantial energy
savings can be recouped.
Cable & Wireless, Falkland Islands, is the exclusive
provider of telecommunications services in the Falklands
Islands, where Airedale‘s close control systems are
already providing precise cooling in a Satellite Earth
Station. All national and international traffic passes
through the Cable & Wireless network.
Housed in a new building insulated against the hostile
local environment, the new IP-based switch requires a
constant 20°C for optimum efficiency and produces a high
heat load which demands substantial 24/7 cooling. The
internal operating temperature is higher than the actual
outdoor dry bulb temperature virtually all year round.
In any hotter spells of weather, the number of air
changes can be increased in order to continue to take
advantage of free-cooling.
The two 17kW Ecotel Indoor downflow units are set as
‘run and standby’ and each configured to provide three
stages of DX cooling, enabling capacity to precisely
match the application.
Says Brian Summers, Cable & Wireless management
coordinator for the project: “Existing Airedale units
situated at the Islands’ Satellite Earth Station have
operated faultlessly for the last ten years and it’s
good to have the peace of mind knowing that the new
Switch and ancillaries are being looked after by
Airedale’s Ecotel Indoor units.”
In less extreme climates, free-cooling still makes a
significant contribution to energy savings. In the UK,
the Ecotel Indoor has been developed to utilise a
‘free-cooling’ cycle which can totally satisfy the
internal heat loads produced by telecoms equipment for
67%* of the year, based on the internal operating
temperatures of modern day telecom cabins being higher
than the actual outdoor dry bulb temperature for more
than 95% of the year.
*(Based on ambient hours for London produced by the
Meteorological Office, Bracknell, UK and cabin setpoint
of 27°C).
Designed and delivered as a fully-charged packaged
system, the Ecotel Indoor unit eliminates the need for
on-site pipe work installation and is ideal for remote
applications and in situations where it is
architecturally undesirable to feature external
compressors or a complete unit.
Email:
c.sharp@airedale.com
Arundel Jones Associates Ltd Registered in England and Wales No.
07334149
Hill Farm, Linton Hill, Maidstone, Kent ME 17 4AL
Tel : 01622 745333
email
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