| 摘要 |
The invention relates to solar thermal industry and can be used in solar collectors with means for concentration of solar radiation. Solar collector has heat-insulation body with transparent coating, channels with heat carrier placed in it, inlet and outlet pipelines and reflective surfaces placed under the channels. The reflective surfaces are arranged as multi-section concentrators that have at least four reflecting facets and are arranged at different angles of inclination with respect to base of the collector body. The channels with heat carrier are placed in focal plane of Winston concentrators and connected to inlet and outlet pipelines. Over the channels in plane of tops of concentrators screens are installed, widths of those are equal to equivalent diameter of the channel and shape repeats the shape of the channel. The invention makes it possible to increase concentration of solar rays and to decrease heat losses, thus to intensify heating of heat carrier in channels of collector, i.e. to increase its thermal effectiveness. |
