SOLAR HEAT PHOTOELECTRIC MODULE WITH COMPOUND PARABOLIC CONCENTRATOR Russian patent published in 2015 - IPC H02S10/30 

FIELD: physics.

SUBSTANCE: solar heat photoelectric module with the compound parabolic concentrator consisting of the paraboloidal concentrator "Focon" and the heat photoelectric receiver located in a focal plane with uniform distribution of the concentrated radiation, differing in that the solar heat photoelectric module contains the compound parabolic concentrator and the cylindrical heat photoelectric receiver with the cooling device installed in the focal plane area, the concentrator representing a rotation body with smooth internal reflection surface, consisting of several zones (a-b, b-c, c-d) is designed compound using the principle of collecting of the reflected beams in two focal plane areas from separate zones of the concentrator: - the form of the reflecting surface of the zones a-b, b-c of the concentrator X (Y) is determined by the system of equations corresponding to the condition of uniform illumination of a surface of photo-electric part of the heat photoelectric receiver designed in the cylinder shape from the commutated high-voltage FEP with the length h_o and the radius r_o, Y_n=R_n ²/4f_o, X_n=R_n-(k-1)r_o, R_n=2f_o(tgα_n+cosα_n), Δα=α_o/N, α_n=Δα(n-N/2), X*=2f₁Q[(1+1/Q²)^l/₂-1], Q=B/r_o, B=h_o+h, Y*=X*²/4f₁, Y*_n=ΔY*n, X_n=[4f₁(Y*+Y*_n)]¹/₂, ΔY=P[1±(1-4R/P²)¹/₂]/2, P=L+Y_b, L=f_o+h+h_o/2, where α_n is an angle (in the zone of the working profile of the concentrator a-c) between the ordinate level in the point of coordinates X_n, Y_n and the beam reflected from the parabola surface with the focal length f_o arriving to focal plane area with the width h_o located on the radius r₀ of the cylindrical photo-electric receiver in Δα=α_o/N intervals where n is selected from a series of integers n=1, 2, 3…N, values of the parameters f_o, f₁, k are selected according to boundary conditions, and geometrical concentration of illumination of the photo-electric receiver K_n is equal in intervals of the concentrator radius ΔX_n=X_n-X_n-1: K_n=(R_n+1 ²-R_n ²)n/d_o, - shape of the reflecting surface of the zone c-d of the concentrator X (Y) is determined by the system of equations corresponding to the condition of uniform illumination of the surface of thermal part of the heat photoelectric receiver designed in the form of the truncated cone with a lateral surface with the length d*, upper radius r_ob and the lower radius r_b: X_c=2Y_c(1/codβ_b-tgβ_b), tgβ_b=(Y_c-H_b)(R_c-r_ob), f_b=Y_c-X_ctgβ_b, r_b=X_c-R_c, d*=h*/sinφ_o, d*_n=d*n/N, K_n=(R² _n+1-R² _n)/(r*_n+1+r*_n)Δd*, X_bn=2f_b(tgγ_bn+1/cosγ_bn), tgφ_o=h*/(r_o-r*_bo), where β_b - an angle (in the zone of the working profile of the concentrator c-d) between the ordinate level in the point of coordinates of X_c, Y_c, and the beam reflected from parabola surface with the focal length f_b arriving to focal plane area of the truncated cone with the radius r_b of the photo-electric receiver, γ_n - an angle (in the zone of the working profile of the concentrator c-d) between the ordinate level in the point of coordinates X_n, Y_n and the beam reflected from the parabola surface with the focal length f_b arriving to the focal plane area of the truncated cone with the width d* of the photo-electric receiver in the intervals Δd*=d*/N, where n is selected from a series of integers n=1, 2, 3…N. The values of the parameters f_b, k are selected according to boundary conditions, φ_o is an angle of inclination of the lateral surface of the truncated cone of the photo-electric receiver, and the geometrical concentration of illumination of the photo-electric K_n receiver is equal in intervals of the concentrator radius ΔX_n=X_n-X_n-1: Kn=(R=2n+1-R2n)/(r*n+1+r*n)Δd*.

EFFECT: improvement of efficiency, and decrease of cost of the generated energy.

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