Oltre il metallo -1- 20101112 p.1 - 42.cdr - DieMMe

Integrabilità controsoffitto
False ceiling integrability
SADIRADIUS: the advantages of panel systems
High air quality
With no filters or condensation
trays in the terminal installed in
the occupied space, there is no
dust and dirt buildup, and hence
the risk of proliferating bacteria is
eliminated.
Comfort
Chilled ceiling systems assure
better results than traditional
systems as the cooling effect is
achieved mostly by means of
radiation. This minimizes heat
transfer by convection, which
involves high airspeed in the
occupied space and evaporation
( s w e a t i n g ) , c o n s e q u e n t l y
resulting in discomfort. The
positive effects for occupants
translate into a considerable
reduction in absences and illness
as well as increased productivity.
Silent running
Chilled ceiling systems are
absolutely noise-free. There are
no fans or speed reduction units
in the occupied space and airflow
inside ducts is reduced to the
value strictly necessary for an air
c h a n g e m e e t i n g h y g i e n e
requirements. Hence occupants
work in an extremely quiet
environment, resulting in
improved concentration levels
a n d t h u s u n b e a t a b l e
performance.
Sound insulation
Thanks to its special construction,
the radiant panel makes a
horizontal sound barrier. All
HVAC system components are
housed behind the false ceiling:
there is no risk of sound
conveyance through ducts or fan
coils. Sound insulation, therefore,
is assured between the various
rooms should partitioning walls
be installed to alter the space’s
layout.
Reduced energy consumption
Compared to all-air systems,
r a d i a n t p a n e l s p r o d u c e
considerable energy savings as
water is a much more effective
energy carrier than air. Unlike a
mixed system, no energy is
needed to run terminal fans.
Generally speaking, energy
savings also derive from the fact
that, during summer operation,
the mean radiant temperature
(perceived by the occupants) is
lower than that of the air. Hence
you can achieve the same comfort
c o n d i t i o n s w i t h a n a i r
temperature 1-2°C higher than
with the traditional system (27-
28°C instead of 26°C). Vice versa,
in winter mode, comfort
conditions can be maintained
with a lower space temperature
(18-19°C instead of 20°C). Other
energy savings can be achieved in
producing primary fluids (cold
water and hot water). If there is a
water source available with a
temperature lower than 16°C
(sea, lake, river or water bed), it
can actually be used for total or
partial cooling of the water
circulated in the circuit supplying
the panels by means of a heat
exchanger. In between seasons,
cold water can also be produced
with freecooling cycles using a
cooling tower. In winter mode,
the use of hot water at a low
temperature (35°C) means highefficiency
heat production
systems can be used, such as
condensation boilers or heat
pumps.
Maintenance free
Maintenance costs are practically
nil, given that there are no
components such as fans or
f i l t e r s . I t i s a l s o w o r t h
remembering that the systems are
out of reach of users, meaning
they cannot be tampered with or
damaged. For access to the false
ceiling, each panel can be
released and removed or opened
like a trapdoor, remaining
attached to the structure.
Space exploited to the full
Radiant panels, by definition, do
not take up floor space. They
feature a streamlined design,
which facilitates installation even
i n b u i l d i n g s u n d e r g o i n g
renovation. Compared to all-air
systems, the size of primary air
ducts and treatment units can be
reduced drastically. Air volume is
actually usually limited to the
need to provide ventilation and
control humidity. In this sense,
chilled ceilings can therefore be
compared to mixed systems.
Looks
Radiant panels look exactly the
same as passive panels. The only
visible element of the HVAC
system consists in the air
d i f f u s e r s . Te r m i n a l s a r e
nonetheless small in size and
linear types can be built into the
structure holding up the false
ceiling.
Flexibility
The system assures unbeatable
flexibility when it comes to the
false ceiling’s configuration.
Radiant panel dimensions can
actually be determined based on
false ceiling geometry and type
and the face module.
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