Abstract

The realization of high concentrations with uniform absorber flux distribution is of great importance for photoconversion, because they greatly reduce the price of the obtained electrical energy. A general case for the inverse iso-intensity problem, in the approximation that the sun is a point source, was analyzed. The type of nonlinear differential equation that determines the reflector configuration for a given shape of an absorber is found, when uniform solar flux distribution on the absorber is required. Differential equations for some special absorber configurations are solved, in some cases analytically, while in others numerically. Also the shape of the caustic for some of the above mentioned reflectors was analyzed.

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