Design method of linear Fresnel mirror with maximum concentration ratio for dual-axis tracker
A linear Fresnel, dual-axis tracking technology, applied in the field of geometric optics, can solve the problems of shadows in adjacent lenses, restricting the commercial use of linear Fresnel reflectors, occlusion, etc. Design simple effects
Active Publication Date: 2020-03-17
HOHAI UNIV CHANGZHOU
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Problems solved by technology
However, a technical problem of linear Fresnel reflectors is that adjacent mirrors have shadow and occlusion problems, which limits the commercial utilization of linear Fresnel reflectors.
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[0017] In order to enable those skilled in the art to better understand the technical solutions in the application, the technical solutions in the embodiments of the application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the application, and Not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0018] The linear Fresnel reflector device with the maximum concentration ratio of the dual-axis tracker includes a bracket, an angle steel, a holding piece, and a linear Fresnel reflector, among which, such as figure 1 As shown, the design method of the linear Fresnel reflector includes the following steps:
[0019] 1) Determine the horizontal distance between the first linear Fresnel reflector and the central axis of the collector as Q 1 , an...
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The invention relates to a linear Fresnel reflector design method for the maximum concentration ratio of a dual-axis tracker. The method includes the following steps: determining the horizontal distance of a first linear Fresnel reflector and a central axis of a heat collector; obtaining the corresponding relation of the included angle between a mirror sheet and a mirror field plane and the included angle of a line between the center of the heat collector and the center of the mirror sheet and the mirror plane according to the reflection law; obtaining the width of the linear Fresnel reflectoraccording to the triangle sine theorem; and determining the horizontal distance of a second linear Fresnel reflector and the central axis of the heat collector according to the horizontal distance ofa first linear Fresnel reflector and the central axis, and so on. Through the accurate calculation of the position parameters, widths and slant angles of each linear Fresnel reflector in the mirror field, the maximum concentration ratio can be realized by maximumly utilizing the space of the mirror field, maximum utilization of sunlight in a confined space can be realized, and heat collecting performance can be enhanced.
Description
technical field [0001] The invention relates to a design method of a linear Fresnel reflector with a maximum concentration ratio of a biaxial tracker, and belongs to the field of geometric optics. Background technique [0002] Energy is the driving force behind the development of human society and the basis for human survival. Due to the shortage of energy sources, the development of new energy sources and new energy technologies has become a problem and challenge that countries all over the world must face in pursuit of sustainable development. [0003] As a renewable clean energy source, solar energy contains enormous energy, and all countries in the world attach great importance to the research and development of solar energy utilization technology. Solar energy utilization technology refers to the use of solar collectors to collect, convert, and store solar radiant energy for use by users. The conversion methods mainly include solar photoelectric conversion and solar ph...
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IPC IPC(8): F24S23/70F24S50/20
CPCY02E10/47
Inventor 童超白建波李俊阳姚命宏曹飞刘升
Owner HOHAI UNIV CHANGZHOU