KE-Low Impulse® textile duct
The KE - Low Impulse textile duct is an
ideal solution for the delivery and distribution
of cooled air, particularly suitable for hygiene, comfort
and temperature control. KE Fibertec's textile based low
impulse systems are woven from Trevira CS polyester yarn,
and the textile surface acts as a fine mesh, allowing the
supply of air to pass through the surface at a very
low uniform discharge velocity which is normally
less than 0.1 m/s.
The KE - Low Impulse textile duct is
produced using round ducts ( Ø ) The KE -
Interior textile duct is available either
as half-round or quarter-round fabric ducts in a design
adjustable to all types of rooms.
Because of the density differential, with the cooled air
being heavier than the warmer air in the room, the room air is
displaced below the duct while the supply air continues moving
towards the floor. The warm air is driven up to high level where it
will not cause discomfort.
The air movement in the room moves naturally, the air is driven
by the difference in density, and the convection streams from
heat-releasing activities and processes, hence the term "passive
thermal displacement" is used.
High levels of heat gain from heat sources generate stronger
convection currents, this results in the air rising faster and
causes more entrainment of the air around the source. The
result is stratification in the ventilated room, heat and
pollution are drawn away from the occupied zone and extracted at
Low impulse textile duct systems are only suitable for
cooling purposes or for distributing large volumes of isothermal
air, as warm air will settle under the ceiling like a blanket. When
this happens, a short circuit is created, and the room is
not heated effectively.
Typical applications, Laboratories, Kitchens, Food Industry
Read more about the
KE-Low Impulse System in our catalogue