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SÉRIE QLE · QLF
These two types are notable for their flat, space-saving construction and feature an elegant face
construction.
Depending on the degree of activity of the persons in the occupied zone, the supply air can enter the space
with a temperature difference of -1K to -6K in relation to the room air.
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PÁGINA INICIAL > PRODUTOS > Difusores de Ar > Difusor de Fluxo de Deslocamento
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The displacement flow units types QLE and QLF are primarily employed in comfort conditioning. As
opposed to the familiar principle of mixed air flow through ceiling or wall diffusers, displacement flow units
guarantee low-turbulence air supply. The discharge velocity is very low.
Depending on the degree of activity of the persons in the occupied zone, the supply air can enter the
space with a temperature difference of -1K to -6K in relation to the room air. The air spreads out on the
floor and is lifted up by convection currents from heat sources (machines, electrical equipment, people,
etc.). The fresh air, therefore, finds its own path to the heat source from which the heat load must be
removed. With an even distribution of displacement flow diffusers, even large halls (e. g. auditoria,
industrial factories) can be air-conditioned without draughts in an economical manner.
rectangular
10 – 1,025 l/s
40 – 3,700 m³/h
24 – 2,177 cfm
L: 300 – 1,500 mm
H: 150 – 2,000 mm
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REFERENZEN
Madrid-Barajas Airport (Spain)
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PÁGINA INICIAL > PRODUTOS > Difusores de Ar > Difusor de Fluxo de Deslocamento
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As the largest airport in Spain, Madrid Barajas receives more than 40 million air
passengers every year which makes it Europe’s main hub for flights to South
America. It is also home to the Spanish Air Force. The architecture is
impressive, too, and in 2006 Madrid Barajas was awarded the renowned British
Stirling Prize.
Spain’s capital airport is characterised by the intricacy of its colourful, 1.2 km
long Terminal 4 building. Its design placed high architectural demands on the air
conditioning and ventilation system. The objective was to create a pleasant
atmosphere for passengers, staff and visitors alike by means of a lowturbulence, draught-free air supply.
Passengers should feel safe and com​fort​able in Terminal 4. Top priorities were,
hence, com​fort, air qual​ity and safety.
TROX was able to install its air con​di​tion​ing and vent​il​a​tion com​pon​ents and
sys​tems in nearly all sec​tions of the air​port to meet the very diverse
requirements.
The dis​place​ment flow dif​fusers had been spe​cially de​signed for Mad​rid Barajas
and were in​stalled in Ter​minal 4. Dis​place​ment flow dif​fusers pre​vent air tur​bu​‐
lence and hence draughts. The convection from people and computers, for
example, causes the air to rise and create comfortable conditions in the
occupied zone. The warm, stale air is extracted near the ceiling. The air qual​ity
in the ter​minal is thus par​tic​u​larly high, with the tem​per​at​ure being main​tained at
com​fort​able levels. In addition to displacement flow diffusers TROX also
installed fire dampers, sound at​ten​u​at​ors and volume flow con​trol​lers.
SERVIÇOS TROX
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