| 摘要(英) |
In this thesis, the study is first to explore the optical characteristics of the refraction type solar concentrator module, especially to minimize the volume size (thickness) of the convergent solar light and the light pattern modulation of the convergent focus, and further to increase the optical conversion efficiency of the Solar Cells. To improve the thermophile characteristics and to reduce the high cost of the Solar Cells, the application of the concentrating solar module is adopted so as to enhance the lens caused by un-even surface illumination by the light pattern and solve the problem of concentrating the regional heat of the Solar Cells, and to gain a higher level of the Solar Cells conversion efficiency (88%).
In the previous study, LightTools optical software was used to simulate the surface illuminance of the Solar Cells and the light beams distribution of the light receiving surface, and then to calculate the light conversion efficiency of the surface area; with Fresnel lenses (100x ~ 300x) and the focal lens position (100mm ~ 300mm) to calculate the standard module conversion efficiency (Max: 82%) by the QC tools of DOE analysis method, the control group is used to calculate the standard module conversion efficiency, in which the SOE element can help change the focus light pattern to increase the module conversion efficiency; however, the refraction module is conditioned by the length of the focal lens and the heavy and large size of the volume. In order to make the concentrator module universal, the experimental group in the study is used by using the concept of reflection, the focusing and Sun light of the incident light, the position of the transposed Solar Cells to upside, and then doing the DOE analysis method with Fresnel lenses (40x ~ 100x) and the focal lens position (100mm) calculated. The module conversion efficiency (Max: 88%) of this study is also related to assessing whether the tolerances in the actual assemble and production design would destroy the simulation results of this thesis.
By the LightTools optical software optimized module, the total volume thickness is reduced from 22cm to 4.2cm with the light pattern uniform distribution and the acceptance angle of the thin type concentrator is 1.00 degree (Due to LightTools optical software, light source setup without solar solid angle 0.25 degree, need to decrease acceptance angle around 0.25 degree), respectively and the optical efficiency is up to Max 88%. The results of the study strongly support the application of the concentrating solar modules in an increase of the competitiveness of manufacturing and a decrease of the material assembly and the delivery cost.
Keywords: solar concentrator module, Fresnel lenses, LightTools |
| 參考文獻 |
參考文獻
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