Project Reference Barajas T4 Terminal

Project Reference
Barajas T4 Terminal
Barajas T4 Terminal, a unique example of
Bio-climatic Design and Energy Efficiency
The new T4 Terminal at Madrid-Barajas airport
has become a building of reference in the
architectural scene, having received awards on
repeated occasions from architectural and
construction institutions worldwide, not only for
the uniqueness of its innovative constructive
appearance and its spectacular size but also for
the significant active and passive measures helping
towards reducing energy consumption and towards
sustainable development.
TROX Contribution
The T4 Terminal building and other service buildings are primarily
formed by the Pier Building and the Satellite Building. These
areas have been planned and designed to provide reduced energy
consumption. One of the critical points within an air conditioning
system is the diffusion of air, as this carries the necessary energy
to offset building loads. This is why treated air, bearing in mind
the significant number of people using these spaces, must be
input to achieve suitable conditions of comfort, making the time
spent in the area pleasant and maintaining optimum conditions
of temperature, humidity and residual speed in the area of
occupancy.
Project:
Barajas T4 Terminal
Architects:
Richard Rogers & Antonio Lamela
Engineering:
GHESA
Installer:
ATIL - GSI - TECAIR
Location:
Madrid
TROX Solution:
Displacement flow diffusion
The Pier and Satellite buildings were planned with a displacement
flow air diffusion system especially designed in line with their
architectural characteristics, where the air is driven at a low
speed and with a small thermal drop at ground level from cylinders
installed on both sides of the area of transit. Thanks to this
displacement flow diffusion system, only the loads in the area
of occupancy must be dealt with, unlike other air mixing systems
where the entire volume of the pier is treated (14 m. in height).
The displacement effect means that the treated air (introduced
at ground level) is driven at a low speed, causing the cold layer
to be displaced by "flooding”. This layer is moved towards the
hot points (people or machinery, etc.) to deal with the thermal
load at this point and to generate an upwards convective column
that eliminates the load and the contaminating particles generated
at this point, thus increasing the quality of the air breathed. As
well as providing greater comfort, this system reduces the flow
of air to be driven and, therefore, the consumption of energy to
carry it and generate cold. By using a discharge temperature that
is high in cold, which means a low thermal drop (discharged
temp + Room temp), the hours of free cooling from the outside
are increased, thus helping to significantly save on energy in the
facility.
A classic high induction-based, air mixture diffusion system
(nozzles, rotational diffusers) of terminal units has been designed
for all other areas in the Terminal that blend in perfectly with
the architectural design of the different areas.