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Optical characterization of a funnel solar cooker with azimuthal sun tracking through ray-tracing simulation

2022Journal article Restricted access
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dc.contributor.authorCarrillo-Andrés, Antonio
dc.contributor.authorApaolaza-Pagoaga, Xabier
dc.contributor.authorRuivo, Celestino
dc.contributor.authorRodríguez-García, Eduardo
dc.contributor.authorFernández-Hernández, Francisco
dc.date.accessioned2022-04-18T10:44:42Z
dc.date.available2024-01-01T01:30:14Z
dc.date.issued2022
dc.description.abstractFunnel type solar cookers are simple and effective. Most of them rely on a multifaceted reflector to concentrate solar radiation on a cooking pot that is placed inside a transparent enclosure to create a greenhouse effect. The analysis of the resulting optical system is a complex task, as multiple reflections occur. The overall performance of funnel solar cookers is strongly affected by their optical efficiency. There is a lack of information in academic literature about this important research topic. This work aims to fill this gap presenting an optical performance analysis of a funnel solar cooker with only azimuthal sun tracking. Open-source numerical ray-tracing software Soltrace is used to investigate relevant characteristics such as the intercept factor, optical efficiency, dependency on incidence angle, performance of each reflecting surface and irradiation density flux distribution on different surfaces of the cooking pot. Some important results for beam radiation at normal incidence are the intercept factor, determined to be 0.664, and the optical efficiency with realistic optical properties, that turned out to be 0.370. When the incidence of solar beam radiation is not normal, optical efficiency remains above 90% of its normal incidence value, if the alignment errors are less than 10 degrees.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.solener.2021.12.027pt_PT
dc.identifier.issn0038-092X
dc.identifier.urihttp://hdl.handle.net/10400.1/17761
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectSolar energypt_PT
dc.subjectSolar cookerpt_PT
dc.subjectFunnel cookerpt_PT
dc.subjectRay-tracingpt_PT
dc.subjectSoltracept_PT
dc.subjectCozinha solar
dc.titleOptical characterization of a funnel solar cooker with azimuthal sun tracking through ray-tracing simulationpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage95pt_PT
oaire.citation.startPage84pt_PT
oaire.citation.titleSolar Energypt_PT
oaire.citation.volume233pt_PT
person.familyNameRuivo
person.givenNameCelestino
person.identifier.ciencia-id9A17-9D4B-A0A9
person.identifier.orcid0000-0002-3915-0554
person.identifier.ridI-7712-2015
person.identifier.scopus-author-id14020628300
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationc0c1a39a-793a-4569-a026-b08f0bc7dde4
relation.isAuthorOfPublication.latestForDiscoveryc0c1a39a-793a-4569-a026-b08f0bc7dde4

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