Multi-dimensional analysis method for focused solar thermal power generation system

A technology for solar thermal power generation and multi-dimensional analysis, applied in the fields of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of lack of real-time prediction model, disconnection between parts and systems, decentralization, etc. The overall performance, the calculation model is well-detailed, and the effect of efficient and reliable analysis results

Active Publication Date: 2017-04-19
XI AN JIAOTONG UNIV
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Problems solved by technology

Although scholars from various countries have done a lot of research in this field, the results are too single and scattered, which separates the connection between the part and the system as a whole, and also lacks an effective real-time prediction model

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  • Multi-dimensional analysis method for focused solar thermal power generation system
  • Multi-dimensional analysis method for focused solar thermal power generation system
  • Multi-dimensional analysis method for focused solar thermal power generation system

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Embodiment Construction

[0033] The present invention is described in further detail below in conjunction with accompanying drawing:

[0034] see figure 1 , the present invention establishes a three-dimensional optical calculation model for the concentrator structure of a solar thermal power generation system, and adopts the Monte Carlo ray tracing method (MCRT) to calculate the radiation heat flux density distribution accepted by the heat collecting tube (see figure 1 );

[0035] A one-dimensional discrete model (1D) is used for the heat transfer fluid along the process to solve the thermal hydraulic parameters; a two-dimensional (circumferential and axial) discrete model (2D) is established for the collector by the finite volume method for Solve for the collector tube temperature distribution (see figure 1 );

[0036] Adopt the finite element method to set up the heat collecting tube three-dimensional discrete model (3D), load the two-dimensional temperature boundary condition in [0006], solve th...

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Abstract

The present invention discloses a multi-dimensional analysis method for a focused solar thermal power generation system, and provides a multi-dimensional coupling model. The multi-dimensional coupling model adopts different sub-models for different problems, for example, a Monte Carlo ray tracing method is used for light-focusing and heat collection, a one-dimensional discrete model is adopted for a thermal hydraulic parameter, a two-dimensional finite model is adopted for temperate distribution of a heat collection tube, a three-dimensional finite element model is adopted for a thermal stress problem, and a zero-dimensional model is adopted for thermal cycle calculation. The coupling method can both improve precision and efficiency, and moreover, local detailed information and overall system performance can be obtained, and the model can be utilized very flexibly. The operating system can be adjusted according to the acquired thermal hydraulic parameter, and the method can be used for predicting influence of various infinite elements on performance of a power plant, and can position and monitor a thermal stress strain situation of the heat collection tube in real time. Moreover, the model method is easily applied to solar thermal power generation systems in other light-focusing forms.

Description

【Technical field】 [0001] The invention belongs to the technical field of solar thermal utilization, and in particular relates to a multidimensional analysis method for a focused solar thermal power generation system. 【Background technique】 [0002] With the continuous improvement of new energy technology, the dependence of human society on traditional energy will be reduced day by day, which will not only help to alleviate the problem of energy shortage, but also help to improve the problem of environmental pollution. Among them, solar thermal power generation technology is more and more popular among people. favor. The stability, reliability and safety of solar thermal power generation systems seriously restrict its commercial development. As a complex photo-thermal-electric conversion system, the concentrating solar thermal power generation system is not only accompanied by prominent thermal structure problems, but also a series of uncertain factors also have an impact on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23Y02E60/00
Inventor 李印实李陆孙杰
Owner XI AN JIAOTONG UNIV
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