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The Research of Fresnel Concentrator for HCPV

Author: WuHeLi
Tutor: LiPeng
School: Wuhan University of Technology
Course: Mechanical and Electronic Engineering
Keywords: Fresnel Optical Simulation High-powered Focus Focal spot homogenization
CLC: TK51
Type: Master's thesis
Year: 2010
Downloads: 537
Quote: 6
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Abstract


Clean and pollution-free solar energy , huge reserves , the sustainable use of renewable energy . Because the solar existence can flow density is low , intermittent , and the spatial distribution of the the other shortcomings uneven , thus increasing the efficiency of solar power generation system , and reduce the cost of power generation is still facing major problems in the current solar applications . Solar concentrator photovoltaic technology , using optical concentrator components to improve the optical energy density of the incident on the solar cell surface , you can reduce the use of expensive solar cells in the system , and can greatly improve the system overall conversion efficiency , reduce the cost of power generation by generation efficient and effective way , the solar concentrator is one of the important components of the concentrating photovoltaic power generation system , its systematic study has important application value . Firstly studied method for the design of the Fresnel solar concentrator (Fresnel lens) , gives a unified design formulas schematic derivation process , and the Fresnel lens of the general design formula ; under the Fresnel lens structure characteristics of the the Fresnel optical loss mechanism and the factors affecting the optical efficiency of the solar concentrator ; using Pro / E 3D parametric modeling technology and Tracepro optical software , different acquisition surface Fresnel condenser 's spot energy distribution of the optical simulation , studies show that the Fresnel lens are usually designed uneven spot energy distribution , affect the power generation efficiency of the solar concentrator cell ; solve this problem, the paper made ??by designing the multifocal lens structure and using secondary optical mirror two implementations of the focal spot of the energy distribution of the homogenization method , and optical simulation for power generation system Tolerance qualitative degree and phase of the energy of the two programs are carried out comparative analysis , comparing the advantages and disadvantages of each . In order to assess the accuracy of the condenser system design and simulation analysis , the thesis of the condenser system optical efficiency test method for the experimental study , analysis of preliminary experimental data results show that the program design is proposed in the paper the feasibility .

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CLC: > Industrial Technology > Energy and Power Engineering > Special heat and its mechanical > Solar Energy Technology
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