Optical efficiency analysis method for light condensation and heat collection system of solar thermal power generation

A technology of solar thermal power generation and concentrated light collection, which is applied in the direction of optical instrument testing, machine/structural component testing, measuring devices, etc., to achieve high practicability and creativity, clear analysis, and simple methods

Active Publication Date: 2013-05-01
天威新能源系统工程(北京)有限公司
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Problems solved by technology

However, in the actual product, the concentrating bracket and the parabolic mirror cannot be an ideal parabola. Therefore, we need a set of practical and effective analysis

Method used

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  • Optical efficiency analysis method for light condensation and heat collection system of solar thermal power generation
  • Optical efficiency analysis method for light condensation and heat collection system of solar thermal power generation
  • Optical efficiency analysis method for light condensation and heat collection system of solar thermal power generation

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Embodiment

[0033] The concentrating heat collection system in the trough solar thermal power generation includes a concentrating bracket, a parabolic reflector, and a vacuum heat collecting tube. According to the law of light reflection, after the sunlight is incident on the parabolic reflector, the parabolic reflector reflects it to the vacuum heat collecting tube. Then complete the work of concentrating light and collecting heat. In the actual product, the concentrating bracket and the parabolic reflector cannot be an ideal parabola. Therefore, in order to make the trough solar thermal power generation system meet the design standards, it is necessary to analyze and evaluate the concentrating heat collection system of the product to find out Factors that affect their work, and strictly controlled.

[0034] In this embodiment, in order to achieve the above purpose, the method adopted is to establish an analysis model including the concentrator, the sun, and the heat collecting tube, and...

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Abstract

The invention discloses an optical efficiency analysis method for a light condensation and heat collection system of solar thermal power generation, solving the problem of an analysis method for light absorption efficiency of the light condensation and heat collection system of large-sized slot type solar thermal power generation. The method comprises the following steps of: photographing a parabolic reflector through a calibrating camera to obtain a three-dimensional digital model of the parabolic reflector; importing the three-dimensional digital model of the parabolic reflector into a computer to obtain a graphic parameter of the parabolic reflector; establishing an analysis model of the parabolic reflector and a heat collection pipe through the graphic parameter of the parabolic reflector; and simulating incidence of sunlight into the established analysis model through the computer so as to acquire a simulation analysis result. According to the optical efficiency analysis method, the influence of an environmental factor is also considered under an actual working condition, can be used as a theoretical analysis tool of the heat collection system and a confirmatory analysis tool under an actual working condition, and has extremely high practicability, convenience, creativity and economy.

Description

technical field [0001] The invention relates to the field of solar thermal power generation, specifically, an optical efficiency analysis method of a solar thermal power generation concentrating heat collection system. Background technique [0002] Trough solar thermal power generation is a thermal power generation technology based on solar energy, and solar energy is a low-energy, low-emission, clean, pollution-free, cheap emerging energy advocated by the state, and its development prospects are very broad. The trough solar thermal power generation system is to arrange multiple trough parabolic concentrators in series and parallel, focus on the direct sunlight, heat the working medium in the vacuum heat collection tube, generate high temperature, and then heat the water through heat exchange equipment to generate high temperature High-pressure steam drives a steam turbine generator set to generate electricity. In the trough thermal power generation system, the concentratin...

Claims

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Application Information

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IPC IPC(8): G01M11/00
Inventor 周学斌魏东冯长波王思平毛琨
Owner 天威新能源系统工程(北京)有限公司
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