Total reflection-based inverse stair solar condensing body
A solar concentrating and total reflection technology, applied in the field of parallel light concentrating, can solve the problems of poor self-cleaning performance, rising cost, reducing the thickness and weight of the concentrator, etc., to solve the problem of rising cost, reducing thickness and weight , Reduce the effect of processing difficulty
Inactive Publication Date: 2013-07-24
SHAANXI UNIV OF SCI & TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It effectively solves the problem of cost increase caused by optical processing of jagged slopes to form quasi-planes and poor self-cleaning performance caused by non-smooth structures; moreover, the lower horizontal surface that constitutes the refraction surface is processed into several inverted staircase-like steps according to needs, reducing the overall cost. After reflection, the attenuation loss of sunlight in the glass material also reduces the thickness and weight of the concentrator
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0015] see figure 1 , the present invention includes an inverted stair-shaped concentrator 1 made of white glass, the angle between the upper plane 3 (light-receiving surface) and the horizontal plane 4 (total reflection surface) is the interface between the lower plane of the white glass 1 material and the natural environment atmosphere 2 The critical angle α when total reflection occurs, and the steps forming the inverted staircase are at right angles. The number of steps is related to the processing cost, the attenuation requirements of sunlight in the optically dense medium, and the reduction of the weight of the concentrator itself. The light collector 1 is driven by a high-precision automatic tracking system to ensure that the sunlight is vertically incident on the light-receiving plane 3 and enters the light collector; So its corresponding critical an...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a total reflection-based inverse stair solar condensing body, which comprises an inverse stair directing lower plane made of optically denser medium. The step angle is a right angle, and the included angle alpha of the upper plane and the horizontal plane is a critical angle when the optically denser medium and an optically thinner medium (surrounding atmosphere) produce total reflection. The solar condensing body manufactured according to the principle is made of only one optical material so as to effectively solve the technical problems of short life of a condenser because a reflecting film on the back of the glass is easy to drop, condensing efficiency decline because the reflecting film absorbs light and the like; and the plane is used as the upper surface of receiving sunlight so that the self-cleaning performance of the condensing body is improved. The sunlight is vertically incident to the receiving inclined plane under the drive of a high-precision automatic tracking system, and the shape of the condenser can be changed according to the actual requirement to directly realize line or spot condensation.
Description
technical field [0001] The invention relates to the field of parallel light concentrating, in particular to an inverted stair-shaped solar concentrator based on total reflection. technical background [0002] One of the obstacles to the promotion and application of solar energy is that the energy density is too low (1 kW / square meter), and it is one of the ways to effectively increase the solar energy density by concentrating light. However, there are specific practical problems in the application of the two basic concentrating methods of reflective and transmissive: the most commonly used method in reflective concentrators is to use the method of coating the reflective layer on the back of the glass material to realize solar energy concentration. The device has the problem that the reflective film falls off in the harsh outdoor environment; in the transmissive concentrator, the Fresnel lens is used as the concentrator to achieve sunlight concentration, but the device has al...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02B19/00G02B6/00
Inventor 宁铎吴涛张永佳张磊
Owner SHAANXI UNIV OF SCI & TECH