Transparent type solar energy condenser

A solar concentrator, transmissive technology, applied in the field of solar concentrators, can solve the problems of complex structure, increased energy consumption and manufacturing costs, and achieve the effect of increasing the receiving area

Inactive Publication Date: 2008-08-27
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is usually composed of light sensor, signal processing and judgment (single-chip microcomputer or computer), and driving device. Not only is the structure complex, but also it must be placed outdoors together with the concentrator. Reliability and durability have long been a big problem. problems, additionally requiring increased energy consumption and manufacturing costs

Method used

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  • Transparent type solar energy condenser
  • Transparent type solar energy condenser

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] see figure 1 , this embodiment uses five-shaped plane Fresnel lenses according to figure 1 The movement track of the sun constitutes a fold-shaped transmissive solar concentrator, which receives sunlight at the center of the sphere. From the analysis of light-gathering performance, the Fresnel lens is a non-imaging concentrator, which only needs to gather sunlight into a small area rather than a geometric ray; so the azimuth angle of the sun is 0°, ±30 °, ±60°, the incident angle of sunlight to the corresponding Fresnel lens is 0°, when the sun deviates from these special angles, there will be an incident angle not equal to 0°, then the focused light will be When the focal point is deviated, the luminous flux received by the receiver decreases.

[0015] see figure 2 , but specifically for the sunlight conveyor, it is required to realize point focu...

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PUM

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Abstract

The present invention discloses a transmission type solar concentrator, comprising a Fresnel condensing lens group and Fresnel lenses arranged in the optical path of the Fresnel condensing lens group. The Fresnel condensing lens group has a folded-surface cambered structure. A plane Fresnel lens which forms an angle of 90 degrees with the optical axis of the Fresnel condensing lens group is arranged in front of the focus of the Fresnel condensing lens group. A concave mirror used for light finishing is arranged in front of the focus of the Fresnel condensing lens so as to enable sunshine to enter into a light receiving window with a smaller incidence angle. The Fresnel condensing lens group 1 of the present invention has the folded-surface cambered structure, so that the purpose of automatic tracking in a tracking-free condition is realized by increasing the receiving area of a condenser.

Description

technical field [0001] The invention relates to a solar concentrator, in particular to a tracking-free transmissive solar concentrator. Background technique [0002] Due to the dual pressure of energy crisis and environmental pollution, countries all over the world are investing huge manpower and material resources in the development and research of clean secondary energy, and solar energy has become one of the focus of research because it has these two characteristics at the same time; Dispersion of solar energy (1000W / m 2 ) and uncertainty, resulting in slow progress in its promotion and application; although with the continuous development of material science and automation technology, people have developed various forms of reflective and transmissive solar concentrators, such as reflective parabolic spheres (point Concentrating) and parabolic cylinder (line concentrating) and other structural forms, but their common feature is that they generally include a one-dimension...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B19/00G02B27/09F24J2/38F24S50/20
CPCY02E10/47
Inventor 宁铎狄亮吴彦锐姚玺
Owner SHAANXI UNIV OF SCI & TECH
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