FIELD: power engineering.
SUBSTANCE: invention relates to a device for converting solar energy into heat. Device is made in form of panel, including frame, in which glass sheet is installed, and heat-insulating layer, and heat-absorbing sheets fixed between them, connected to each other with formation of channels for circulation of heat carrier, note here that said panel comprises branch pipes communicated with heat carrier inlet and outlet channels. Channel is preferably made in the form of a figure in the cross section formed by lateral sides and smaller bases of two isosceles trapeziums conjugated with their larger bases. Ratio of lengths of larger base of trapezoid to smaller base of trapezoid to height of trapezoid is preferably—6:3.2:1. Heat-absorbing sheets are preferably connected to each other by contact welding. Device preferably includes a metal sheet installed in the frame on the side of the heat-insulating layer. Frame and heat-absorbing sheets can be made of steel.
EFFECT: increased efficiency of heat energy accumulation.
5 cl, 4 dwg
