Adjusting the design of a radiant heating system for office retrofit

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dc.contributor.authorJunášová, Barboracs
dc.contributor.authorŠikula, Ondřejcs
dc.contributor.authorKrajčík, Michalcs
dc.contributor.authorArici, Müslümcs
dc.contributor.authorŠimko, Martincs
dc.date.issued2022-05-16cs
dc.description.abstractInstallation of low-exergy water-based radiant systems can help alleviate the negative effects of increased energy consumption due to their suitability for combination with low-grade renewable energy sources. Radiant heating and cooling installations in buildings are common, but their application in existing buildings as part of retrofit is relatively rare. The present study investigated some of the aspects of the installation of radiant heating systems in existing buildings. Wall and ceiling systems with pipe underneath the surface were considered because of various potential benefits. These include the possibility of operating as cooling in summer and heating in winter, easy installation in existing buildings, minor space requirements, and no or little need to reduce the height of the storey, especially in the case of walls. It was found that with a thermally conductive core, only a thin insulation layer of 1 cm may suffice if the temperature difference between rooms is relatively small. For an insulating core, no insulation may be needed even at higher temperature differences between rooms. Reducing the pipe spacing to about 5 cm was found to be efficient in terms of increased thermal output per 1 cm of spacing. The location of the insulation had a small effect on the thermal losses, but the output was higher for insulation placed on the outer side of the wall due to a more uniform temperature distribution in the structure. This configuration also allows for considerably higher heat storage capacity.en
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citation2022: CLIMA 2022 The 14th REHVA HVAC World Congress. 2022, p. 1-7.en
dc.identifier.doi10.34641/clima.2022.205cs
dc.identifier.isbn978-94-6366-564-3cs
dc.identifier.orcid0000-0002-7661-0732cs
dc.identifier.other178137cs
dc.identifier.researcheridJ-4390-2012cs
dc.identifier.scopus55053563200cs
dc.identifier.urihttp://hdl.handle.net/11012/208249
dc.language.isoencs
dc.publisherTU Delftcs
dc.relation.ispartof2022: CLIMA 2022 The 14th REHVA HVAC World Congresscs
dc.relation.urihttps://proceedings.open.tudelft.nl/clima2022/article/view/205cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectRadiant heatingen
dc.subjectretrofiten
dc.subjectthermal performanceen
dc.subjectceiling heatingen
dc.subjectwall heatingen
dc.titleAdjusting the design of a radiant heating system for office retrofiten
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-178137en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:45:47en
sync.item.modts2025.01.17 19:33:59en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technických zařízení budovcs
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