@article{ijp20261431,
author={{DJIKA, Seydou and NOMAO, Harouna SANI DAN and BOUKAR, Makinta and MADOUGOU, Saidou},
title={Study of A Theoretical and Experimental Model of Direct Solar Radiation At the University of Agadez Experimental Site in Niger},
journal={International Journal of Physics},
volume={14},
number={3},
pages={55--60},
year={2026},
url={https://pubs.sciepub.com/ijp/14/3/1},
issn={2333-4576},
abstract={This work involves evaluating direct solar radiation by applying Kasten¡¯s semi-empirical mathematical model and comparing the results with measurements taken at the University of Agadez experimental site (Agadez urban commune), with the aim of sizing a 20 MWe thermodynamic solar power plant. This study was conducted under three different atmospheric conditions (overcast, average, and clear skies) and using three solar collector tilt angles (0¡ã, 17¡ã, and 30¡ã). Radiation calculations were performed using Excel software by incorporating appropriate equations into a program based on the Kasten model. As for the measurements, they were conducted over ten (10) typical days using two pyranometers. After correcting for the Linke turbidity factor, the resulting direct solar radiation and theoretical annual irradiation are 680 W/m2 and 2,979 kWh/m2/year, respectively, compared to measured values of 767 W/m2 and 3,010 kWh/m2/year. This study confirms Agadez's strong solar potential for CSP.},
doi={10.12691/ijp-14-3-1}
publisher={Science and Education Publishing}
}