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dc.contributor.authorEtxebarria Berrizbeitia, Saioa
dc.contributor.authorJadraque Gago, Eulalia 
dc.contributor.authorMuneer, Tariq
dc.date.accessioned2020-05-04T11:45:31Z
dc.date.available2020-05-04T11:45:31Z
dc.date.issued2020-02-06
dc.identifier.citationBerrizbeitia, S. E., Jadraque Gago, E., & Muneer, T. (2020). Empirical Models for the Estimation of Solar Sky-Diffuse Radiation. A Review and Experimental Analysis. Energies, 13(3), 701.es_ES
dc.identifier.urihttp://hdl.handle.net/10481/61752
dc.description.abstractAccurate solar radiation data are essential for the development of solar energy application systems. The limited availability of solar radiation data, and especially diffuse irradiance values, makes it vital to develop models to estimate these data. The development of estimation models has been the objective of many studies. This paper presents an extended review of the diffuse ratio (k) vs. clearness index (kt) annual, monthly, daily, and hourly frequency regression models. It is however interesting to note that there is a dearth of such knowledge for diffuse ratio–clearness index regressions that are based on averaged data. Monthly-averaged daily global irradiation data are now easily available from the NASA website for any global location. Using existing models, it is possible to decompose the daily to averaged-hourly global irradiation values. The missing link so far has been hourly averaged diffuse irradiation. This article presents regression equations which could be used to estimate that information. For this purpose, hourly global and diffuse irradiation data was pooled from 19 different locations to obtain three latitude-dependent regression models relating the monthly-averaged hourly diffuse ratio (k) to the clearness index (kt). The results show a high relationship between both variables. These regression equations could be used to estimate the averaged diffuse irradiation values from averaged global irradiation values, which are more easily available.es_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightsAtribución 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectSolar radiation es_ES
dc.subjectDiffuse ratioes_ES
dc.subjectClearness indexes_ES
dc.subjectMonthly-averaged hourlyes_ES
dc.titleEmpirical Models for the Estimation of Solar Sky-Diffuse Radiation. A Review and Experimental Analysises_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.3390/en13030701


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Atribución 3.0 España
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