Estimation of daily global solar radiation from measured temperatures at Cañada de Luque, Córdoba, Argentina

Almorox Alonso, Javier; Bocco, Mónica y Willington, Enrique (2013). Estimation of daily global solar radiation from measured temperatures at Cañada de Luque, Córdoba, Argentina. "Renewable Energy", v. 60 ; pp. 382-387. ISSN 0960-1481. https://doi.org/10.1016/j.renene.2013.05.033.

Descripción

Título: Estimation of daily global solar radiation from measured temperatures at Cañada de Luque, Córdoba, Argentina
Autor/es:
  • Almorox Alonso, Javier
  • Bocco, Mónica
  • Willington, Enrique
Tipo de Documento: Artículo
Título de Revista/Publicación: Renewable Energy
Fecha: Diciembre 2013
Volumen: 60
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Edafología [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Solar radiation is the most important source of renewable energy in the planet; it's important to solar engineers, designers and architects, and it's also fundamental for efficiently determining irrigation water needs and potential yield of crops, among others. Complete and accurate solar radiation data at a specific region are indispensable. For locations where measured values are not available, several models have been developed to estimate solar radiation. The objective of this paper was to calibrate, validate and compare five representative models to predict global solar radiation, adjusting the empirical coefficients to increase the local applicability and to develop a linear model. All models were based on easily available meteorological variables, without sunshine hours as input, and were used to estimate the daily solar radiation at Cañada de Luque (Córdoba, Argentina). As validation, measured and estimated solar radiation data were analyzed using several statistic coefficients. The results showed that all the analyzed models were robust and accurate (R2 and RMSE values between 0.87 to 0.89 and 2.05 to 2.14, respectively), so global radiation can be estimated properly with easily available meteorological variables when only temperature data are available. Hargreaves-Samani, Allen and Bristow-Campbell models could be used with typical values to estimate solar radiation while Samani and Almorox models should be applied with calibrated coefficients. Although a new linear model presented the smallest R2 value (R2 = 0.87), it could be considered useful for its easy application. The daily global solar radiation values produced for these models can be used to estimate missing daily values, when only temperature data are available, and in hydrologic or agricultural applications.

Más información

ID de Registro: 20202
Identificador DC: http://oa.upm.es/20202/
Identificador OAI: oai:oa.upm.es:20202
Identificador DOI: 10.1016/j.renene.2013.05.033
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0960148113002784
Depositado por: Memoria Investigacion
Depositado el: 23 Sep 2013 17:03
Ultima Modificación: 31 Dic 2015 23:56
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