SOLAR COLLECTOR Russian patent published in 2002 - IPC

FIELD: high-temperature solar power plants with concentrators of solar radiation, applicable in all branches of industry, where thermal power is needed. SUBSTANCE: the solar collector has longitudinal wedge- shaped members with reflecting faces installed row upon row, with turns of the coil tube of the heat absorber for the heat-transfer agent to be heated located between them. According to the invention, the tube of the heat absorber is made transparent, and its cross-section has the shape of a rectangle with an upper convex surface forming a shallow lens together with the heat-transfer agent flowing in it, and each turn of the tube is butt-joined to the lower ribs of the faces of the adjacent wedge-shaped members; the faces of the members are highly polished and are of a different curvature, the lower part of them is made concave, the curvature center is positioned behind the plane of formation of the vertical side surfaces of the transparent tubes of the heat absorber; and for increasing the equilibrium temperature the convex surface of the tube turns is made with a curvature providing for arrangement of the lens focal line in the heat-transfer agent, the concave section of the face of the wedge-shaped member begins from the tube lower rib and continues up to the line of formation of a right angle with sun rays in the extreme positions of Solar declination, and the upper part of the member faces is made rectangular up to the top. EFFECT: enhanced temperatures of the heat- transfer agent without any use of Sun tracking systems. 4 dwg