Solar radiation concentrators paired with multijunction photoelectric converters in ground-based solar power plants (part I) |
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| Authors: | E A Ionova M V Ulanov N Yu Davidyuk N A Sadchikov |
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| Institution: | 1.Ioffe Physical–Technical Institute,Russian Academy of Sciences,St. Petersburg,Russia;2.St. Petersburg National Research Academic University,Russian Academy of Sciences,St. Petersburg,Russia |
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| Abstract: | We have developed a method for determining parameters of radiation concentrator in solar power plants. To estimate the efficiency of concentrators in the form of Fresnel lenses in setups with three-junction photoelectric converters, the concept of the efficiency of the concentrator–photoelectric converter pair has been introduced. We have proposed a method for calculating the refracting profile of concentrators taking into account the dispersion relation for the refractive index and its variations with temperature for the material of the refracting profile of the concentrator (Wacker RT604 silicone compound). The results of calculation make it possible to achieve the maximal efficiency of the concentrator–photoelectric converter pair in the presence of chromatic aberrations in the optical system of solar radiation concentration. |
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