A non-ventilated solar façade concept based on selective and transparent insulation material integration: an experimental study

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dc.contributor.authorČekon, Miroslavcs
dc.contributor.authorSlávik, Richardcs
dc.coverage.issue6cs
dc.coverage.volume10cs
dc.date.accessioned2020-08-04T11:01:36Z
dc.date.available2020-08-04T11:01:36Z
dc.date.issued2017-06-08cs
dc.description.abstractA new solar façade concept based on transparent insulation and a selective absorber is proposed, tested and compared with conventional insulation and a non-selective type of absorber, respectively. The presented study focuses on an experimental non-ventilated solar type of façade exposed to solar radiation both in the laboratory and in outdoor tests. Due to the high solar absorbance level of the façade, high- and low-emissivity contributions were primarily analysed. All of the implemented materials were contrasted from the thermal and optical point of view. An analysis was made of both thermodynamic and steady state procedures affecting the proposed solar façade concept. Experimental full scale tests on real building components were additionally involved during summer monitoring. An indicator of the temperature response generated by solar radiation exposure demonstrates the outdoor performance of the façade is closely related to overheating phenomena. From the thermal point of view, the proposed transparent insulation and selective absorber concept corresponds to the performance of conventional thermal insulation of identical material thickness; however, the non-selective prototype only provides 50% thermal performance. The results of the solar-based experiments show that with a small-scale experimental prototype, approximately no significant difference is measured when compared with a non-selective absorber type. The only difference was achieved at the maximum of 2.5K, when the lower temperature was obtained in the solar selective concept. At the full-scale outdoor mode, the results indicate a maximum of 3.0K difference, however the lower temperature achieves a non-selective approach. This solar façade can actively contribute to the thermal performance of building components during periods of heating.en
dc.description.abstractA new solar façade concept based on transparent insulation and a selective absorber is proposed, tested and compared with conventional insulation and a non-selective type of absorber, respectively. The presented study focuses on an experimental non-ventilated solar type of façade exposed to solar radiation both in the laboratory and in outdoor tests. Due to the high solar absorbance level of the façade, high- and low-emissivity contributions were primarily analysed. All of the implemented materials were contrasted from the thermal and optical point of view. An analysis was made of both thermodynamic and steady state procedures affecting the proposed solar façade concept. Experimental full scale tests on real building components were additionally involved during summer monitoring. An indicator of the temperature response generated by solar radiation exposure demonstrates the outdoor performance of the façade is closely related to overheating phenomena. From the thermal point of view, the proposed transparent insulation and selective absorber concept corresponds to the performance of conventional thermal insulation of identical material thickness; however, the non-selective prototype only provides 50% thermal performance. The results of the solar-based experiments show that with a small-scale experimental prototype, approximately no significant difference is measured when compared with a non-selective absorber type. The only difference was achieved at the maximum of 2.5K, when the lower temperature was obtained in the solar selective concept. At the full-scale outdoor mode, the results indicate a maximum of 3.0K difference, however the lower temperature achieves a non-selective approach. This solar façade can actively contribute to the thermal performance of building components during periods of heating.cs
dc.formattextcs
dc.format.extent1-21cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationENERGIES. 2017, vol. 10, issue 6, p. 1-21.en
dc.identifier.doi10.3390/en10060815cs
dc.identifier.issn1996-1073cs
dc.identifier.other136861cs
dc.identifier.urihttp://hdl.handle.net/11012/69339
dc.language.isoencs
dc.publisherMDPI AGcs
dc.relation.ispartofENERGIEScs
dc.relation.urihttp://www.mdpi.com/1996-1073/10/6/815cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1073/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectSolar wall
dc.subjectSolar simulator
dc.subjectSolar façade
dc.subjectTransparent insulation material
dc.subjectSolar absorber
dc.subjectSelectivity
dc.subjectLow-emissivity
dc.subjectOutdoor testing
dc.subjectSolar wallen
dc.subjectSolar simulatoren
dc.subjectSolar façadeen
dc.subjectTransparent insulation materialen
dc.subjectSolar absorberen
dc.subjectSelectivityen
dc.subjectLow-emissivityen
dc.subjectOutdoor testingen
dc.titleA non-ventilated solar façade concept based on selective and transparent insulation material integration: an experimental studyen
dc.title.alternativeA non-ventilated solar façade concept based on selective and transparent insulation material integration: an experimental studycs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-136861en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:01:36en
sync.item.modts2020.08.04 12:40:47en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. AdMaS EGAR - Pozemní stavitelstvícs
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