Design method of combined paraboloid type solar concentrator

A technology of solar concentrators and paraboloids, applied in optics, instruments, optical components, etc., can solve problems such as difficult to accurately evaluate solar energy concentration performance, unable to realize automation, fast, low-cost design, etc.

Active Publication Date: 2021-03-09
CENT SOUTH UNIV
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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

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  • Design method of combined paraboloid type solar concentrator
  • Design method of combined paraboloid type solar concentrator
  • Design method of combined paraboloid type solar concentrator

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Embodiment Construction

[0071] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0072] The invention provides a method for designing a combined parabolic solar concentrator, see figure 1 , including the following steps:

[0073] 1) Determine the design optical parameters and design operating parameters of the concentrator to be designed, wherein the design optical parameters include the specular reflectance ρ and the profile error σ of the reflective surface of the concentrator, and the design operating parameters include the direct solar radiation intensity I d ;

[0074] 2) Design the area S of the light outle...

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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...

Claims

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Application Information

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IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 邱羽李庆
Owner CENT SOUTH UNIV
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