Theoretical and Experimental Optical Evaluation and Comparison of Symmetric 2D CPC and V-Trough Collector for Photovoltaic Applications

Table 2

Parameters employed in the ray-trace software.

Parameter	Value
Refractive index of glass ()	1.52
Refractive index of air ()	1.00
Glass extinction coefficients (m^−1)	4.00
End loss coefficient	0.99
Reflectivity of the reflector ()	0.91
Absorptance of the PV cells	1.00