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Design method of a combined parabolic solar concentrator

A technology of solar concentrators and paraboloids, which is applied in the direction of instruments, optics, optical components, etc., can solve problems such as difficult to accurately evaluate solar energy concentration performance, and cannot realize automatic, fast, and low-cost design, so as to achieve automatic optimal design , convenient construction and design, and strong versatility

Active Publication Date: 2021-11-19
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 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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  • Design method of a combined parabolic solar concentrator
  • Design method of a combined parabolic solar concentrator
  • Design method of a combined parabolic 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 for a combined parabolic solar concentrator. Firstly, determine the optical and operating parameters of the concentrator; The concentrating power obtained by the mouth is used as the design target parameter and its value is set; then, the geometric parameter combination of the concentrator is determined, and the geometric model of the design scheme under each combination is established; then, the concentration process of solar energy in each scheme is simulated, and the corresponding Concentrating power; Finally, select the scheme that meets the design requirements, and select the scheme with the largest receiving half-angle as the final scheme; if the scheme that meets the requirements cannot be obtained under the current geometric parameter combination, the geometric parameter combination will be automatically adjusted. Redesign until a solution that meets the requirements is obtained. The geometric design, model construction, optical modeling and performance evaluation of the combined parabolic concentrator can be carried out quickly and accurately, and the automatic design of the concentrator is realized.

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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/00
CPCG02B27/0012
Inventor 邱羽李庆
Owner CENT SOUTH UNIV
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