Design method of combined paraboloid type solar concentrator

Abstract

The invention discloses a design method of a combined paraboloid type solar concentrator, and the method comprises the following steps: determining optical and operating parameters of the concentrator; setting the area of a light outlet according to requirements, and taking the condensation power obtained at the light outlet when sunlight is incident perpendicular to the light inlet as a design target parameter and setting the value of the design target parameter; determining geometric parameter combinations of the condenser, and establishing a geometric model of the design scheme under each combination; simulating the gathering process of the solar energy in each scheme to obtain corresponding light gathering power; finally, selecting the scheme meeting the design requirement, and selecting the scheme with the maximum receiving half angle as the final scheme. And if the scheme meeting the requirement is not obtained under the current geometric parameter combination, automatically adjusting the geometric parameter combination, and redesigning until the scheme meeting the requirement is obtained. Geometric design, model construction, optical modeling and performance evaluation of the combined paraboloid type condenser can be rapidly and accurately carried out, and automatic design of the condenser is achieved.

Description

technical field [0001] The invention relates to the technical field of concentrating solar energy utilization, in particular to a design method for a combined parabolic solar concentrator. Background technique [0002] Since the 19th century, fossil energy dominated by coal, oil, and natural gas has gradually become the pillar of world energy. With the rapid development of economy and society, human beings use more and more fossil energy. However, the extensive use of fossil energy has caused increasingly serious environmental problems and a large amount of waste of resources, and the fossil energy will eventually be exhausted. Therefore, the development and utilization of renewable energy represented by solar energy has become an inevitable choice for world energy development. [0003] Among the existing solar energy utilization technologies, concentrated solar energy utilization technologies represented by concentrating solar thermal utilization, concentrating photovolta...

AI Technical Summary

Problems solved by technology

The design of the combined parabolic solar concentrator will involve the complex curved geometry of the reflective surface of the concentrator, the complex propagation and concentration process of multiple non-ideal reflections and absorptions of solar radiant energy inside the concentrator, the concentrator Due to its strong non-imaging concentrating characteristics, it is difficult for the existing design methods to quickly, accurately and conveniently design a reasonable geometric configuration design scheme of the combined parabolic concentrator, and it is difficult to accurately evaluate the designed concentrator Solar concentrating properties of geometric configuration design schemes, which in turn lead to inability to achieve automated, fast, low-cost design

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