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Evaluación de la correlación entre valores experimentales promedios minuto de radiación solar difusa a global, en el sector centro-oriente de Bogotá - Colombia
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Advisor(s)
Abstract(s)
RESUMEN: Se presentan resultados de la evaluación sobre la correlación entre valores promedios minuto de medidas de radiación solar difusa a radiación solar global diarias, en el plano horizontal, para el sector centro - oriente de Bogotá, Colombia, durante el período 2012-2015. Los datos de radiación solar difusa, como los de global, se adquieren a partir de sistemas estructurados, desarrollados bajo el concepto de Instrumentación Virtual que emplea lenguaje de programación gráfica Lab-VIEW. Aunque en general los cambios en magnitud de la intensidad de radiación difusa siguen simultáneamente a los de global, sus diferencias se amplían en momentos de alta radiación. Los resultados arrojan un coeficiente de correlación entre radiación difusa a global fd=0.639. Como complemento se presentan perfiles en el periodo establecido, con valores promedio día y mes/día. Estos aportes son necesarios para establecer características del potencial energético solar en áreas y regiones definidas, es decir, tener parámetros válidos para dimensionamiento, diseño e implementación de plantas y sistemas solares.
ABSTRACT: This article presents the results of the evaluation on the correlation between minute mean values of measurements of diffuse solar radiation to global solar radiation daily, in the horizontal plane, for the central-eastern sector of Bogotá, Colombia, during the period 2012-2015. Diffuse solar radiation data, such as global data, are acquired from structured systems, developed under the concept of Virtual Instrumentation that uses the graphical programming language Lab-VIEW. Although in general the changes in magnitude of the intensity of diffuse radiation follow simultaneously to those of global, their differences widen at times of high radiation. The results show a correlation coefficient between diffuse radiation at global fd = 0.639. As a complement, profiles are presented during the established period, with average day and month/day values. These contributions are necessary to establish characteristics of the solar energy potential in defined areas and regions, that is, to have valid parameters for dimensioning, design and implementation of solar plants and systems.
ABSTRACT: This article presents the results of the evaluation on the correlation between minute mean values of measurements of diffuse solar radiation to global solar radiation daily, in the horizontal plane, for the central-eastern sector of Bogotá, Colombia, during the period 2012-2015. Diffuse solar radiation data, such as global data, are acquired from structured systems, developed under the concept of Virtual Instrumentation that uses the graphical programming language Lab-VIEW. Although in general the changes in magnitude of the intensity of diffuse radiation follow simultaneously to those of global, their differences widen at times of high radiation. The results show a correlation coefficient between diffuse radiation at global fd = 0.639. As a complement, profiles are presented during the established period, with average day and month/day values. These contributions are necessary to establish characteristics of the solar energy potential in defined areas and regions, that is, to have valid parameters for dimensioning, design and implementation of solar plants and systems.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Solar radiation Global radiation Diffuse radiation
Citation
Forero Chacón, N.L... [et.al.] - Evaluación de la correlación entre valores experimentales promedios minuto de radiación solar difusa a global, en el sector centro-oriente de Bogotá - Colombia. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 919-926
Publisher
LNEG - Laboratório Nacional de Energia e Geologia