Kotti, M.C.; Argiriou, A.A.; Kazantzidis, A. - In: Energy 70 (2014) C, pp. 382-392
DNI (direct normal irradiance) can be calculated from global and diffuse horizontal irradiance measurements. However …, the diffuse irradiance values need to be corrected because the pyranometer's shadowband does not obstruct only the solar … disk but also a larger part of the sky vault. In this study, we use four diffuse correction models (Drummond [1], LeBaron …