FIELD: power engineering.
SUBSTANCE: in a solar module with a concentrator comprising a transparent focusing prism with an angle of complete inner reflection
where n - coefficient of prism material refraction, with triangular cross section, having an inlet face, to which radiation drops along the normal line to the surface of the inlet face, and a face of radiation re-reflection, forming a sharp double-faced angle φ with the inlet face, and the face of output of the concentrated radiation and a reflection device, forming with the re-reflection face a sharp double-faced angle ψ, which is arranged unidirectionally with the sharp double-faced angle φ of the focusing prism, the reflection device comprises a set of mirror reflectors with length L0 having identical sharp angles ψ, set at a certain distance from each other, on the surface of the input face there are additional mirror reflectors that are inclined to the surface of the input face at the angle 90°-δ, which is arranged as differently directed with a sharp double-faced angle φ of the focusing prism, the lines of contact of the plane of the additional mirror reflector with the input face and the line of contact of the plane of the mirror reflector of the re-reflection device with the re-reflection face are in the same plane, perpendicular to the surface of the input, the length of projection of the additional mirror reflector to the surface of the input face is more than the length of the projection of the mirror reflector of the reflection device to the surface of the input face by the value
In another version of the solar module with a concentrator comprising a transparent focusing prism with triangular cross section, with the angle of input of beams β0 and the angle of total inner reflection
where n - coefficient of the prism, having an input face and the face of re-reflection of radiation, which form a common double-faced angle φ, the face of output of the concentrated radiation and a reflection device, which forms with the re-reflection face a sharp double-faced angle ψ, which is arranged unidirectionally with the sharp double-faced angle φ of the focusing prism, the reflection device comprises a set of mirror reflectors installed at a certain distance from each other with length L0 with identical sharp angles ψ, with a device of rotation relative to the re-reflection face, on the surface of the input face there are additional mirror reflectors, which are inclined to the surface of the input face at the angle 90°-δ and are made in the form of louvers with a rotation device relative to the surface of the input face, and the angle of inclination of additional mirror reflectors to the surface of the input face is arranged differently directed with the sharp double-faced angle φ of the focusing prism, axes of the rotation device of the additional mirror reflector on the face of input and axis of the mirror reflector rotation device on the re-reflection device with the face of re-reflection are in the same plane, which is perpendicular to the surface of the input, the length of projection of the additional mirror reflector to the input surface is more than the length of projection of the mirror reflector of the reflection device to the input surface by the value
In the method of manufacturing of a solar module with a concentrator by making a focusing prism from optically transparent material, installation of a radiation receiver, a re-reflection device with mirror reflectors from tempered sheet glass or another transparent sheet material, they make and seal the walls of the cavity of the focusing prism with a sharp double-faced angle at the top equal to 2-12° and then they fill the produced cavity with an optically transparent medium, they install tightly a radiation receiver and assemble additional mirror reflectors with rotation devices on the working surface of the focusing prism and a rotation device for the re-reflection device.
EFFECT: increased optical efficiency of a module, reduced optical losses during re-reflection of radiation and increased coefficient of solar radiation concentration.
10 cl, 3 dwg
