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- Title
Solar radiation analysis and regression coefficients for the Vhembe Region, Limpopo Province, South Africa.
- Authors
Mulaudzi, Sophie T.; Sankaran, Vaithianathaswami; Lysko, Meena D.
- Abstract
Given the limited observed and reliable data for solar irradiance in rural parts in South Africa, a correlation equation of the Angström-Prescott linear type has been used to estimate the regression coefficients in the Vhembe District, Limpopo Province, South Africa. Five stations were selected for the study, with the greatest distance between stations less than 180 km. Monthly regression coefficients were derived for each station based on an observation dataset of sunshine duration hours and global horizontal irradiance. The correlation coefficients appear to be above 0.9. The representative Angström-Prescott model for the Vhembe Region was found by collating the data for each station and then averaging the respective correlation coefficients. This paper presents the generated regression coefficients for each station and for the Vhembe Region.
- Subjects
SOUTH Africa; SOLAR radiation; REGRESSION analysis; GREENHOUSE effect; LINEAR free energy relationship; SUNSHINE
- Publication
Journal of Energy in Southern Africa, 2013, Vol 24, Issue 3, p2
- ISSN
1021-447X
- Publication type
Article
- DOI
10.17159/2413-3051/2013/v24i3a3136