Metodología para el Dimensionamiento y Optimización de un Concentrador Lineal Fresnel

this paper presents a methodology for the sizing of linear fresnel reflectors with curved mirrors and inverted compound parabolic concentrator cavity. the objective of the paper is to determine the geometrical parameters of the concentrator to obtain the maximum solar energy collection. the proposed methodology uses an analytical procedure in conjunction with a ray trace technique. a parametrical study evaluating the operation hours for a representative day in the critical month for the city of mexicali, baja california, mexico, was carried out. for a concentrator with seven curved mirrors of 34.3 cm width and tubular absorber of 4.2 cm diameter, the resulting dimensions were: 10 cm spacing between mirrors, 1.8 m focal distance and 19.7 cm width cavity. with these dimensions, a geometrical concentration of 11.9 and collection efficiency of 82.4% are obtained.