The experiment was performed during the month of May in the year of 2011 by setting the slat angle at 0 and 45.
The measured data are the incident global solar radiation, incident diffuse solar radiation and transmitted solar radiation. All data points are measured at 30 s intervals.
The data are then averaged within 5 min intervals to facilitate graphical representation of the data shown in the figures.
The predicted transmitted solar radiation from the developed mathematical model can be determined from the relationship developed in Section 2 as