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COOLING
Cooling is used for technical equipment, living premises and of-
fices, as well as for cooling inflowing air in the air-conditioning
system.
Complementing the above-mentioned measures aimed at opti-
mising the building’s insulation and airtightness and recovering
heat, cooling needs have been reduced through the installation of
outside sunscreens:
– the perforated steel sheeting surrounding the building as fixed
protection;
– fabric blinds on the south facades on the third and fourth floor
as flexible protection.
Production of chilled water (6/12°C) is mainly done by a 200kW air
condenser chiller 7 on the roof of the building, working in combina-
tion with an absorption machine for producing chilled water which
recovers the heat produced by the CHP unit and turns it into cooling. hoses on reels connected at the one end to the vehicle exhausts and
Constant cooling of the computer rooms is accomplished by an
independent system available throughout the year.
THE EMERGENCY VEHICLE GARAGE
The garage is the point of departure for all emergency responses
and is designed to enable firemen to get to their vehicles quickly in Due to the glazing in the folding doors, the garage gains suffi-
the case of such a response.The garage constitutes the building’s
core, housing all the technical equipment needed for preparing
the rescue vehicles. It includes a moderately heated zone for the
ambulances and a workshop.
Ventilation and heating
The garage is ventilated by maintaining a certain vacuum by
means of two roof-installed extractors. Adjustable inlets, in the
form of louvres equipped with self-adjustable valves to prevent
uncontrolled air seepages, are integrated in the external wood-
work between the folding doors. In addition, the garage and
its workshop have an automatic system for extracting vehicle
exhaust fumes.
Heating is by hot water fan heaters specially designed for high
rooms.These ensure a steady temperature of 16°C in the main
garage and workshop and 20°C in the ambulance garage.There
are 12 such heaters, all installed above the inside roadway, once
every four sections, directing heat towards the facade.
Intensive natural ventilation of the garage can be achieved
through opening the folding doors.
Evacuation of exhaust fumes
This system is installed to ensure the comfort and well-being of
those working in the garage through the automatic extraction
of toxic fumes produced by vehicle engines.The type of system
matches the zone in which it is installed.
That of the emergency response zone behind the folding doors on
the north-east facade (fire engines and ambulances) is made up of
extraction rails installed perpendicular to the facade in the vehicle
exit direction, and of hoses attached to the vehicle exhaust pipes
via pneumatic clamping sleeves.The hoses slide along the rails to
ensure that exhaust fumes continue to be extracted until all vehi-
cles individually connected to the system have left the garage.The
extractors to which the rails are connected via circular galvanised
steel ducts are automatically activated on detecting a difference in
pressure within the network.
That of the auxiliary response zone and the workshop is made up of
at the other end to the extractors, again via galvanised steel ducts.
The vehicle exhaust fumes are then discharged via grilles in the
rendered facade, behind the perforated steel sheeting surrounding
the building.
Lighting
cient natural light during daylight hours. Suspended LED 8 panels,
evenly spaced between the radial concrete beams, provide lighting
at night and help light up the outside road through the glazed
doors. LED panels, some fixed to the railing running around the
top of the building, others on galvanised steel lampposts, light up
the outside road around the building, together with the manoeu-
vring area and outdoor sports field.
The lighting of each zone in the garage is controlled by motion
and light detectors integrated into each panel. Light intensity is
dependent on the level of artificial lighting needed.
Power and other inputs
Inputs for the equipment stationed in the garage comes from con-
centric rings linked radially to the internal systems.
Input sockets (for compressed air, electricity, data, etc.) for prepar-
ing response vehicles are grouped together on metal panels next
to the folding doors (they also house the door controls).The con-
nections to the various distribution networks located on the upper
outer edge of the garage are arranged in a hooded metal conduit.
Visual (cameras, clocks) and acoustic (sirens, voice systems/
alarms) communication and information devices linked to the
third-floor control room are fixed under the cable ducts 6.50 me-
tres above the indoor roadway.