PARAMETRIC CYLINDRICAL SOLAR COLLECTOR HAVING AN OPTIMISED SECONDARY RECONCENTRATOR AND METHOD FOR DESIGNING SAME

摘要

Parametric cylindrical solar collector with an optimized secondary reconcentrator and its design process, where the geometry of the primary reflector is an evolution of the Helmet collector concept towards a discontinuous curve that allows increasing the C/Cmax concentration to over 0.52 as well as reducing the wind loads. The structure is optimized to withstand the different loads to which the collector is exposed. The collector's center of gravity is brought closer to the axis of rotation of the collector. The geometry of the secondary reconcentrator is optimized and the collection efficiency of the collector is of 100%. The secondary reconcentrator is obtained partially mirroring the glass tube that keeps the vacuum in the absorber tube.