Influence of errors of trough pointing and fin alignement on the geometrical concentration ratio of focusing parabolic concentratiors

The geometrical behaviour of a focusing parabolic trough with a fin receiver has been studied in detail keeping in view the interesting application of this system for photovoltaic conversion of solar energy through double-sided and multiple-junction edge illuminated solar cells. Results regarding the influence of the pointing errors of the trough and alignment errors of the fin on the geometrical concentration rato of the system are presented.