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research-article

Spatio-temporal variation of daily Global Horizontal Irradiance in islands with complex topography island: La Reunion as a case study.

[+] Author and Article Information
Miloud Bessafi

Laboratoire d'Energétique, d'Electronique et Procédés (LEEP), Université de la Réunion, 15 Avenue René Cassin, Sainte-Clotilde 97715, La Réunion
miloud.bessafi@univ-reunion.fr

Vishwamitra Oree

Electrical and Electronic Engineering Department, Faculty of Engineering, University of Mauritius
v.oree@uom.ac.mu

Abdel Anwar Hossen Khoodaruth

Mechanical and Production Engineering Department, Faculty of Engineering, University of Mauritius
a.khoodaruth@uom.ac.mu

Guillaume Jumaux

Direction Interrégionale de la Réunion, Météo-France
guillaume.jumaux@meteo.fr

Francois Bonnardot

Direction Interrégionale de la Réunion, Météo-France
francois.bonnardot@meteo.fr

Patrick Jeanty

Laboratoire d'Energétique, d'Electronique et Procédés (LEEP), Université de la Réunion, 15 Avenue René Cassin, Sainte-Clotilde 97715, La Réunion
patrick.jeanty@univ-reunion.fr

Mathieu Delsaut

Laboratoire d'Energétique, d'Electronique et Procédés (LEEP), Université de la Réunion, 15 Avenue René Cassin, Sainte-Clotilde 97715, La Réunion
mathieu.delsaut@univ-reunion.fr

Jean-Pierre Chabriat

Laboratoire d'Energétique, d'Electronique et Procédés (LEEP), Université de la Réunion, 15 Avenue René Cassin, Sainte-Clotilde 97715, La Réunion
jean-pierre.chabriat@univ-reunion.fr

Muhammad Zaid Dauhoo

Department of Mathematics, Faculty of Science, University of Mauritius
m.dauhoo@uom.ac.mu

Li Peng

Laboratoire d'Energétique, d'Electronique et Procédés (LEEP), Université de la Réunion, 15 Avenue René Cassin, Sainte-Clotilde 97715, La Réunion
peng.li@univ-reunion.fr

1Corresponding author.

ASME doi:10.1115/1.4041404 History: Received June 05, 2018; Revised August 28, 2018

Abstract

An accurate assessment of the amount solar radiation incident at specific locations is highly intricate due to the dependence of available solar radiation on many meteorological and topographic parameters. Reunion Island, a small tropical French territory, intends to deploy solar energy technologies rapidly. In this context, the variability and intermittency of solar irradiance in different regions of the island is of immediate interest if the generated energy must be integrated in the existing energy network. This paper identifies distinct features of spatial and temporal variability of daily global horizontal radiation observed on Reunion Island. For this purpose, trends in the mean daily as well as seasonal variability of solar radiation were investigated. Finally, the intermittency and multifractal behaviors of the spatial daily solar radiation change were examined. Results revealed that the difference in cumulative solar radiation for two successive days range between -10 and 10 kW/m2 while the highest and lowest variability of daily change occurs during summer and winter respectively. Moreover, the average decorrelation distance for day-to-day solar radiation change is found to be about 22 km. The Hurst exponent, fractal co-dimension and Lévy parameter, which describe solar radiation intermittency, were also evaluated for Reunion Island.

Copyright (c) 2018 by ASME
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