SU1347068A1 - Solar energy concentrator - Google Patents

Abstract

The invention relates to solar technology and allows you to expand the range of operation of the concentrator by creating a concentrated flow, perpendicular to the axis of symmetry of the concentrator and having a given uniformity and density. The secondary reflector (BO) 5 has the shape of a body of rotation formed by a section of the second-order curve, the focal axis of which is perpendicular to the axis of symmetry of the BO 5. BO 5 is located coaxially and softly to the primary reflector 1. Section 2 of the parabola of the latter is part of a branch, located above the focal chord from the axis of symmetry 4, which is from focal zone 3 at a distance less than half of the focal parameter. In order to increase the density of the concentrated stream, the second order curve of the BO 5 may be a parabola, while the radiation flux has a uniform density. With the ellipsoidal form BO 5, the density of the radiation flux incident on the receiver increases. Such an embodiment of the concentrator ensures the focusing of the radiation flux on an axis with an angle of coverage of 2 it and with a density specified along it. 3 hp f-ly, 5 ill. w (L 00 4 O O5 CX) Fy

Description

The invention relates to solar technology, in particular to solar concentrators,

The aim of the invention is to expand the range of operation by creating a concentrated flow perpendicular to the axis of symmetry of the concentrator and having predetermined uniformity and density.

Fig, -1 shows a structural diagram of a solar concentrator; in fig. 2 is a structural diagram of a secondary reflector of a hub; in fig. 3 - geometric form- 15 secondary reflector of the primary reflector of the concentrator; in fig. 4 - secondary reflector of the concentrator, one of the options; in fig. 5 - solar energy concentrator, embodiment.

The solar concentrator contains a primary reflector 1 (Fig. 1) with a linear focus, having the shape of a body of rotation, formed by a parabola section 2, the focal axis 3 of which is parallel to the axis 4 of symmetry of the reflector 1.

The concentrator is equipped with a secondary reflector 5, having the shape of a rotational body formed by section 6 (Fig. 2) of a second-order curve, the focal axis 7 of which is perpendicular to the axis 8 of symmetry of the secondary reflector 5, and the primary reflector 1 located coaxially and concentrically (FIG. 1), the parabola section 2 of the latter is a part 9 (FIG. 3) of the branch located above the focal chord 10 on the side of the symmetry axis 4, and the latter is located from the focal axis 3 at a distance R less than half the focal parameter.

The second-order curve of the secondary reflector 5 (Fig. 2) may be a parabola.

The second-order curve of the secondary reflector 5 (FIG. 4) may be an ellipse.

coated and discharged.

In the course of a concentric, with a striking 5 radiation reflector, there may be an annular prism (not n spectral decomposed

Solar Hub 10 works as follows

The incident solar is centered primary (fig. 1) in linear to ce and re-reflects with

perpendicular to the primary reflection of the reflector 5 by the parabolic profile 20 receiver (the conditional flux is shown, the radiation density. In its full form, the reflectance of the incident radiation increases

An additional side (Fig. 5) directs out from with the reflector 1 a focus increases the concentration of the radiation.

The proposed end energy provides the radiation flux of the coverage 21G and with a given

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density.

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Claims (4)

1. A salt concentrator containing a primary linear focus, has a rotation formed by a rabole, the focal axis of the axis of symmetry is designed to expand the range of creation of the concentrator perpendicular to the axis of the concentrator The concentrator can be equipped with at least one additional reflector 11 (FIG. 5) located equidistantly to the primary reflector 1.- In this case, the reflectors 1 and 11 have outlet holes lying in the same plane and having the same area. The mirror surface of the hub can be protected by a dielectric 5 secondary reflector coated and selective. An annular prism (not shown) for spectral decomposition of the radiation can be installed along the stream of radiation concentrated by the secondary reflector 5 (Fig. 1). Solar hub 0 works as follows. The incident solar radiation is concentrated by the primary reflector 1 (Fig. 1) in a linear annular focus and is reflected by a confocal 5 in the direction perpendicular to the axis 4 of symmetry of the primary reflector 1. When performing reflector 5 (Fig. 2) with a parabolic profile, the receiver incident on 0 (conventionally shown) the concentrated radiation flux has a uniform density. With the ellipsoidal shape of the reflector 5 (Fig. 4), the density of the radiation flux incident on the receiver increases. The additional reflector 11 (FIG. 5) directs the radiation to a common focus with the reflector 1 and thereby increases the concentrated radiation flux. The proposed solar energy concentrator provides focusing of the radiation flux on the axis with an angle of coverage 21 G and with a given five 0 35 density. 40 45 Invention Formula 1. A solar concentrator containing a primary reflector with a linear focus, having the shape of a rotational body formed by a parabola, whose focal axis is parallel to the axis of symmetry of the reflector, which is designed to expand the range of operation by creating a concentrated stream perpendicular to the axis of symmetry , - the concentrator is provided with a secondary reflector, having the shape of a body of rotation, formed by a section of the second-order curve, the focal axis of which is perpendicular to the axis of symmetry of the secondary reflection bodies and disposed sogg Ba and confocal reflectors primary lu, the last portion of the parabola is a branch part disposed -I hope focal chord from the axis of symmetry, and the latter is located on the focal axis a distance less than half the focal parameter. 2. Concentrator according to claim 1, in which, in order to improve the uniformity of the density of the concentrated flow, the curve:; the second order of the secondary reflector is a parabola. 3. The concentrator of claim 1, of which is based on the fact that, for the purpose of 470684 increasing the density of the concentrated flow, the second-order curve of the secondary reflector is g an ellipse. 4. The concentrator according to claim 1, which is based on the fact that, with the aim of increasing the density of the concentrated flow, it is equipped with at least 10 additional reflectors located equidistantly to the primary reflector. Fig.Z k four / j; X / W tj f / .J Compiled by P „Shenderovich Editor O. Golovach Tehred ILChopovich Order 5119/46 Circulation 521 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow., Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader I. Muska