4.5 Article

Comparative Study of Experimentally Measured and Calculated Solar Radiations for Two Sites in Algeria

Journal

ENERGIES
Volume 14, Issue 21, Pages -

Publisher

MDPI
DOI: 10.3390/en14217441

Keywords

solar radiation; Linke turbidity factor; clearness index; sunshine ratio; attenuation coefficient

Categories

Funding

  1. German Research Foundation (DFG)
  2. Technical University of Munich (TUM)

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This study compares measured solar radiations with calculated values from theoretical models at specific sites in Algeria. The accuracy of different models is assessed by comparing experimental and predicted data, providing insights into the reliability of each model for solar radiation estimation at the locations under investigation.
This paper presents a comparison study between the measured solar radiations on site and the calculated solar radiation based on the most theoretical models presented in the literature up to date. Indeed, for such purposes, this paper focusses on the analysis of the data of the measured solar radiation collected on two sites in Algeria such as Tlemcen (34 & DEG;52 & PRIME;58 & DPRIME; N 01 & DEG;19 & PRIME;00 & DPRIME; W, elevation 842 m) and Senia (35 & DEG;39 & PRIME; N 0 & DEG;38 & PRIME; W, elevation: 77 m). In order to check the accuracy of the proposed model, the experimental collected data of the solar radiation obtained from the existing radiometric stations installed at the two locations under investigation, are compared with the estimated or predicted solar radiations obtained from the Capderou and R.Sun models, where four days under clear skies are selected from different seasons to achieve this comparison. Second, the daily averages of the experimental global solar irradiation are compared to those predicted by Mefti model for both the sites. Finally, a validation is carried out based on the obtained experimental monthly global irradiations and with those estimated by Coppolino and Sivkov models. A relative difference is used in this case to judge the reliability and the accuracy of each model for both sites.

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