Solar collector with reflecting surfaces
AssigneeITRS d.o.o.
InventorKresimir Skeljo
Life of this patent
Estimating the term…
Abstract
A solar collector with reflecting surfaces according to the present invention prevents overheating of the solar collector by reflecting the radiation in a way that the light beams, by means of a first transparent surface, are corrected to the preferred angle and further directed towards channels. On a second transparent surface the beams are directed again and on a third transparent surface the light beams are reflected if in the channels is air. If the working fluid flows through the channels, on the third surface there is no reflection, so the light beams pass through the opaque part of an absorber where the solar radiation is converted into the thermal energy that is then removed by the working fluid.
Claims20
A solar collector with reflecting surfaces comprising an outer transparent plate and an inner transparent plate, the inner and outer transparent plates being parallel to each other and enclosing a first gap, the first gap being airtight and filled with air or a vacuum, channels through which air or a working liquid flows, a thermal insulation means arranged on lateral sides of the solar collector, and additional means for bringing or draining the working liquid, wherein the channels are on the underside made of an absorber for conversion of solar radiation energy into the thermal energy and on the upper side are enclosed by the inner transparent plate, wherein the inner transparent plate has an upper surface which is a first toothed surface comprising a plurality of teeth extending in the longitudinal direction of the channels, and the inner transparent plate has a lower surface which is a second toothed surface with a plurality of teeth extending in the longitudinal direction of the channels, the first and second toothed surfaces serving for direction of solar radiation when the working liquid is present in the channels or reflection of solar radiation when air is present in the channels.
A solar collector, comprising:
- an outer transparent plate having an upper surface and a lower surface;
- an inner transparent plate having an upper surface and an lower surface;
- the outer transparent plate and inner transparent plate being spaced part and having lateral side walls, thereby defining a cavity;
- an absorber surface for absorbing solar radiation and radiating thermal energy positioned below the inner transparent plate;
- a plurality of channels positioned between the inner transparent plate and the absorber surface;
- at least one of the outer transparent plate and the inner transparent plate having both an upper surface and a lower surface having longitudinal teeth, whereby the outer or inner transparent plate reflects solar radiation when there is no solar collector working fluid in the cavity or the channels and transmits solar radiation therethrough when there is a solar collector working fluid in the cavity or the channels.
A solar collector, comprising:
- an outer transparent plate having an upper surface and a lower surface;
- an inner transparent plate having an upper surface and an lower surface;
- the outer transparent plate and inner transparent plate being spaced part and having lateral side walls, thereby defining a cavity;
- the inner transparent plate upper and lower surfaces being toothed surfaces, the inner transparent plate upper and lower surfaces reflecting solar radiation when there is no solar collector working fluid adjacent thereto and transmitting solar radiation through the inner transparent plate when there is a solar collector working fluid adjacent thereto;
- an absorber surface for absorbing solar radiation and radiating thermal energy positioned below the inner transparent plate;
- and
- a plurality of channels positioned between the inner transparent plate and the absorber surface.
Dependencies are inferred from the claim text.