Fabric Ducting Range

  • Description
  • Features
FABRIC DUCTING
Textile ducting is a technology for refrigerating, air-conditioning, refreshing, ventilating or heating an atmosphere or even transporting treated air. It can be used in all types of application: industry, public buildings, very high buildings, food-processing plants, logistics buildings, tertiary activities and more.

From an installation point of view
Textile ducts are light, resistant products with few restrictions.
Textile ducts are designed to be easily removable.
They can be adapted to the constraints found on all types of premises: They can be in any shape and be adapted to all types of air treatment. They are products that are upgradeable and modular over time.

Principle
In the case of textile diffusers AIRNÉO of RADIANT type, air discharge
is exclusively through porous material strips in judicious places and
dimensions in order to create the desired charge loss and let through
the desired air flow. This diffusion brings about optimum user comfort,
almost immediately next to the duct, thanks to low discharge speeds
around 0.2 to 1 m/s. Thus, the movements in the mass of discharged
air are mainly due to differences in temperature between the various
masses of air concerned.
> Conditions and limitation of use (characteristics)
Use in refrigeration, (Diagram 1), implies perfect knowledge of air blown
into the premises. In effect, a too great temperature gap (ΔT) implies:
 a weak diffusion range
 a concentration of cold air under the diffuser, thus creating a
phenomenon known as « cold shower »
 an increase in the speed of the air jet as it comes down: cold air
comes down all the faster if its temperature is slow in relation to
the ambient temperature
 a condition of discomfort in the occupied area
 the use of a greater number of textile diffusers in order to spread
the treated air correctly
 an increase in the installation’s cost
It is advised not to use this for heating, unless the height of the ceiling is very low, combined with a recirculation
below or if the diffusers are implanted in a low position and provided the ΔT is low. If the temperature differential
is too high:
 hot air is difficult to direct towards the bottom, the diffusion energy being too low to overcome its inertia.
 the air comes back up quickly towards the top of the premises, thus creating a temperature stratification.
 heating of the occupied area is then more difficult to carry out. In reality, the ΔT used is between 1 and 5°C.
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