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dc.contributor.authorManni, Mattia
dc.contributor.authorNocente, Alessandro
dc.contributor.authorSkeie, Kristian
dc.contributor.authorBellmann, Martin Pawel
dc.contributor.authorLobaccaro, Gabriele
dc.identifier.citationJournal of Physics: Conference Series (JPCS). 2023, 2654: 012149.en_US
dc.description.abstractThe accurate estimation of buildings' solar potential contributes to boost the exploitation of solar energy at high latitudes. The decomposition of global irradiation into the direct and diffuse fractions is a fundamental step of the solar irradiance model chain. Diffuse and direct irradiation are, in fact, rarely measured. Previous works recommended Yang4 as the decomposition model with the best overall performance. However, in geographically limited applications, quasi-universal decomposition models such as Yang4 and Engerer4 can be outperformed by local models (i.e., models parametrized with climate-specific data) such as Skartveit3 and Starke3. This makes necessary to perform local validation studies to verify the findings from worldwide validation studies. In this study, the four decomposition models are implemented in Python and experimentally validated against one-minute solar irradiance data (i.e., direct and diffuse irradiance) of Trondheim (Lat. 63°26' N, Norway). Two months representative of clear sky (August) and overcast (October) conditions are considered. The study confirms that the Yang4 model performed the best for high-latitude application: the nMBE ranged from -0.54% (August) to 0.65% (October), the nRMSE from 17.18% (August) to 22.29% (October), and the R2 from 0.96 (August) to 0.97 (October). However, Skartveit3 combines a level of performance close to Yang4 with the lower number of input parameters.en_US
dc.publisherIOP Publishingen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleValidation of decomposition models for solar irradiance at high latitudes: A preliminary studyen_US
dc.title.alternativeValidation of decomposition models for solar irradiance at high latitudes: A preliminary studyen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.source.journalJournal of Physics: Conference Series (JPCS)en_US
dc.relation.projectNorges forskningsråd: 324243en_US

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