Directly from the Sun, natural, flexible and cheap heating.
In a lovely winter day passing from the shade to full sunshine, you get an immediate feeling of warmness. This means that it is not the air, which has a constant temperature everywhere, that causes heating but it is rather direct exposure to sunlight. This natural propagation of heat is called radiation and consists in the transmission of the long and soft waves of infrared rays contained in the spectrum of the Sun's electromagnetic energy. The properties of infrared rays are absolutely extraordinary:
1. They are propagated in straight lines, in all directions and they are reflected only on some materials;
2. the propagate naturally in vacuum without needing additional energy;
3. they are not absorbed by air;
4. they are absorbed by the solid bodies that transform them immediately into thermal power.
Radiance is today at heart of the most advanced air conditioning technologies: not only for the recent domestic radiating system for small environments, but for the most consolidated applications for the heating of large industrial areas.
The CARLIEUKLIMA systems are installed
with anchors connected to the ceiling
of the room to be heated, so that
the floor, machines and persons to be
heated are contacted directly and
without dispersion. Depending on the area to be heated,
the various heat emitters are distributed
over the area so as to obtain
uniformity in the heat flow. In fact,
radiant systems do not heat the air
directly but rather the floor, equipment,
machinery and persons.
Advantages of radiant heating as opposed to
convection heating
CONVECTION
RADIANCE
In the same conditions of comfort, a radiance heating system offers the following
advantages as compared to a convection system:
Greater comfort with lower air temperature
Increase of the average radiant temperature
and therefore, in the same
conditions of comfort, lower temperature
of the air, which is transparent to
radiance and is heated only upon contact with the floor or other surfaces.
The thermal load of the system is thus
reduced because energy is not used to
heat high volumes of air directly.
Lack of thermal gradient resulting in reduced dispersion
In rooms heated with radiance
systems, the lack of a marked thermal
gradient reduces air layering and therefore
also the thermal load required to
heat the room.
Figure to side shows the air temperature
when varying the height of a building
with convective heating and one with
radiant heating. It can be seen how, in
the convection system, thermal layering
leads to very high temperatures in
the upper part of the room, thus creating
substantial increase in dispersion.
In the radiance system, the heat is
instead concentrated in the lower part
of the room, without heating the air
near the ceiling. For this reason,
radiance heating is installed with especially
successful results in building of
substantial height.
No air movement, hence lack of suspended dust particles
In convection systems, dust and any
other particles which may or may not
be harmful due to manufacturing processes
are constantly held suspended
in the air due to the ventilation which
is typical of those kinds of systems. In
radiance systems there is no air movement.
This substantially reduces the raising of dust and makes the adoption
of radiance systems in any building
with any manufacturing process the
perfect choice. It is up to the designer
to choose the most suitable system
based on the characteristics and activity
performed in each single room.
Well-being and long-lasting health.
An industry interested in protecting the environment and the well-being of its human resources must adopt an industrial heating system working in two directions: reduce noxious emissions into the atmosphere and ensure the greatest comfort of the work site, the environment where we spend more than a third of our day. Heat is produced in radiation systems by gas generators: gas is known to be a clean energy with combustion residues having a low environment impact. Where we work is where we can consider the advantages of this technology:
- no fluids in movement means no harmful currents and no movement of dust;
- the small temperature differences between high and low areas reduce heat layers in the air and condensate developing on solid bodies;
- no forced warm air helps to maintain the right amount of oxygen.
Three components of a real comfort that means immediate well being and long-lasting health.
Low thermal inertia
The CARLIEUKLIMA radiance systems
generally have a low thermal inertia,
which allows them to be brought up to
full operating power quickly, thus reducing
their operating times compared to
a convection system.
Possibility to heat by zones
With a CARLIEUKLIMAradiance heating
system it is possible to heat single
zones or workstations without having to
heat the entire area. It is also possible
to control ambient temperature zone by
zone.
Large operative spaces are organised according to functions: management areas, production areas, warehousing space, passages. Each of these components - organically connected to the rest of the system - has its own identity even in terms of energy requirements. For example, a production department with operators requires a constant comfortable temperature that is not needed in a passage. Different conditioning needs can often be in strong conflict with the physical arrangement of workstations, differentiated in terms of function, but contained in one environment without separating and insulating elements. In cases such as these, the application of traditional heating techniques can be dispersive and inefficient: too much heat where do don't need it, too little where you do. Today the new radiation technologies allow to overcome these limits once and for all, when suitably enhanced by strategic engineering in order to optimise the three components of these systems: generators, radiating lines, electronic devices.
Fuel savings
One of the strengths of the radiant
heating technique is the huge savings
that it makes possible. Improved
performance compared to systems
with the same power levels with clear
savings (even more than 50%) in fuel
consumption. The speed with which
the system can be brought up to full
operating power and the extremely low
maintenance costs complete the economic
picture of CARLIEUKLIMA system operation.
