Open AccessAngström-Prescott empirical model to estimate solar radiation in Norte de Santander, Colombia
Author(s) -
Wilmer Contreras-Sepúlveda,
Migan Giuseppe Galban-Pineda,
Luis Fernando Bustos-Márquez,
Sergio Basilio Sepúlveda Mora,
J Ramírez-Mateus
Publication year - 2021
Publication title -
revista de investigación, desarrollo e innovación/revista de investigación desarrollo e innovación
Language(s) - English
Resource type - Journals
eISSN - 2389-9417
pISSN - 2027-8306
DOI - 10.19053/20278306.v11.n2.2021.12765
Subject(s) - empirical modelling , environmental science , radiation , meteorology , geography , sunlight , brightness , atmospheric sciences , physics , engineering , simulation , astronomy , quantum mechanics
The document shows the application of the empirical Angström-Prescott model in different places in Norte de Santander, Colombia. The model estimates solar radiation from hours of sunlight, at a site where brightness and solar radiation are measured. The data were obtained from the Institute of Hydrology, Meteorology and Environmental Studies, IDEAM; algorithms were developed in RStudio to process and analyze the information. The model establishes a linear relationship between solar radiation and the hours of sunlight, in a specific geographic location. Therefore, regression analyzes were performed for three different sites, using historical records of brightness and solar radiation, obtaining the R-squared coefficients of: 0.73, 0.78, and 0.42. The models were then extrapolated to nearby regions with solar brightness records, but without solar radiation data, to obtain an estimate of radiation at these locations. Finally, a database was created with monthly average information on solar radiation for various subregions of Norte de Santander, which can be used for the design and implementation of photovoltaic systems.