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Sustainability 2015, 7(3), 2644-2661; doi:10.3390/su7032644

Estimating Solar Irradiation Absorbed by Photovoltaic Panels with Low Concentration Located in Craiova, Romania

Department of Electromechanics, Environment and Industrial Informatics, Faculty of Electrical Engineering, University of Craiova, Craiova 200440, Romania
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Nikos E. Mastorakis
Received: 13 January 2015 / Revised: 9 February 2015 / Accepted: 13 February 2015 / Published: 4 March 2015
(This article belongs to the Special Issue Sustainability in Electrical Engineering)
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Abstract

Solar irradiation is one of the important parameters that should be taken into consideration for the design and utilization of a photovoltaic system. Usually, the input parameters of a photovoltaic system are solar irradiation, the ambient environment temperature and the wind speed, and as a consequence most photovoltaic systems are equipped with sensors for measuring these parameters. This paper presents several mathematical models for solar irradiation assessment. The starting point is represented by the mathematical model of extraterrestrial irradiation, and resulting finally in the model for solar irradiation, absorbed by a low concentration photovoltaic panel. These estimating models of solar irradiation have been particularized for the Craiova, Romania, and have been verified through numerical simulation. Regarding terrestrial solar irradiation, four mathematical models have been adopted, namely Adnot, Haurwitz, Kasten and Empirical (EIM). Of these, the most appropriate for the Craiova location were the models Adnot and Empirical. Consequently, for the calculation of the solar irradiation absorbed by the photovoltaic (PV) panels with low concentration, these models have been taken into consideration. In this study, a comparative analysis was also carried out with respect to the solar irradiation absorbed by the PV panels without concentration and those with collectedness of the solar radiation. This analysis was based on the results of numerical simulation and experimental tests. View Full-Text
Keywords: low concentrating photovoltaic system; mathematical models; photovoltaic panel; solar irradiation low concentrating photovoltaic system; mathematical models; photovoltaic panel; solar irradiation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Alboteanu, I.L.; Bulucea, C.A.; Degeratu, S. Estimating Solar Irradiation Absorbed by Photovoltaic Panels with Low Concentration Located in Craiova, Romania. Sustainability 2015, 7, 2644-2661.

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