Selektif Absorbant surface:
- 97-95 % absorption of solar thermal energy
- 5-7 % emission of heat
- Resistivity of surface to heat and corrosion, long life
- Resistivity of surface to welding
The effective utilization of thermal energy derived from solar
radiation using either a flat plate or a focused collector
system requires an efficient solar selective coating. The type
of coating proves significant as a criterion that determines the
quality of the absorber sheet. For this coating to perform
efficiently under solar radiation, its radiation properties
should be as required. The ideal values of absorptivity and
emissivity are respectively 100% and 0%. However, in practice
these values cannot be reached. Therefore, it is in the best
interest to get closest possible values to the ideal ones. An
efficient coating is defined as having a high absorptance over
a solar spectrum, but in addition, having a low emittance to
reduce thermal irradiated heat losses. With the intermediary of
significant investments on R&D, SELEKTİF TECHNOLOGY has
developed a patented coating that has highly selective properties.
The fact that this coating can be investigated on any metal proves
unique in the industry.
An efficient coating not only has high absorptive properties over
the solar spectrum (0.3-0.2 micron), but also allows a low
emission to reduce thermal radiative heat losses.
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