Heat losses of window compact shutters

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dc.contributor.authorFicker, Tomášcs
dc.coverage.issue1cs
dc.coverage.volume960cs
dc.date.issued2020-12-09cs
dc.description.abstractWindow shutters are usually made of wood. They protect glazed windows at their external sides from mechanical damages and inconvenient weather conditions. A typical window compact shutter is described and its thermal properties are discussed. In winter season, the heat transfers inside the window shutters represent unwanted heat losses. These transfers of heat are caused especially by convection and radiation running between the warm glazed side of the window to the cold external side of the shutter and through this external side into outdoor space. The heat transfers are computed on the basis of physical relations. The computation of convective heat transfer is based on the correlation relations utilizing Rayleigh`s and Prandtl’s numbers. The radiative transfer is computed by means of the Stefan-Boltzmann law and the Kirchhoff law. The thermal resistance of the typical shutter is derived. It is shown that this resistance is temperature dependent. It is the radiation that is responsible for the temperature dependency of the thermal resistance of compact window shutters. The formula for thermal resistance derived in this contribution may assist the building technologists to evaluate insulation capabilities of similar compact shutters possessing comparable geometric dimensions and similar thermal emissivities.en
dc.formattextcs
dc.format.extent1-5cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2020, vol. 960, issue 1, p. 1-5.en
dc.identifier.doi10.1088/1757-899X/960/2/022021cs
dc.identifier.issn1757-8981cs
dc.identifier.orcid0000-0001-8095-3482cs
dc.identifier.other169546cs
dc.identifier.researcheridAAD-7526-2019cs
dc.identifier.scopus6701831271cs
dc.identifier.urihttp://hdl.handle.net/11012/196544
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofIOP Conference Series: Materials Science and Engineeringcs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/1757-899X/960/2/022021/pdfcs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1757-8981/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectHeat lossesen
dc.subjectwindowen
dc.subjectwindow shuttersen
dc.subjectconvectionen
dc.subjectradiation.en
dc.titleHeat losses of window compact shuttersen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-169546en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:44:28en
sync.item.modts2025.01.17 15:14:09en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav fyzikycs
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