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Journal of Applied Mathematics and Statistical Applications | Volume: 1

August 23-24, 2018 | London, UK

Applied Physics

International Conference on

Global solar radiationon tilted surfaces inTunisia:Measurement, estimationandgainedenergy assessments

Belkilani Kaouther

University of Tunis El Manar, Tunisia

very important factor in the assessment of solar potential

for the installationof photovoltaic plants is the availability

of global irradiation data measurements. Such data must be

collected over a period of time longer than 11 years and must

be accurate. In some countries, it is difficult to have databases

of these measures. To overcome this problem, we propose,

the use of numerical models to estimate the monthly,

seasonally and annually solar energy irradiation (global

diffuse and direct solar radiation), especially on tilted surface.

The results obtained from the numerical models are

compared to the data collected from three regions on

Tunisia: Bizerte (in the north), Nabeul (near to the north east)

and Djerba (in the south). The actual measurements taken

from the meteorological stations and the measurements

generated by the numerical models are very close.

After the validation of the numerical models, we tried to

calculate the best tilt angle for each period of the year to

position a photovoltaic panel, in a given region, to reach

maximum energy recovery. The practical validation, of the

optimal tilt angle search and the adequate period, was

conducted at the Research and Technology Center of Energy

of Borj_Cedria. The obtained results are satisfactory and

prove the reliability of the constructed numerical models.