Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/100795
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dc.contributor.authorSantos, Paulo-
dc.contributor.authorRibeiro, Telmo-
dc.date.accessioned2022-07-12T08:23:12Z-
dc.date.available2022-07-12T08:23:12Z-
dc.date.issued2021-
dc.identifier.issn1996-1073-
dc.identifier.urihttps://hdl.handle.net/10316/100795-
dc.description.abstractThe reduction of unwanted heat losses across the buildings’ envelope is very relevant to increase energy efficiency and achieve the decarbonization goals for the building stock. Two major heat transfer mechanisms across the building envelope are conduction and radiation, being this last one very important whenever there is an air cavity. In this work, the use of aerogel thermal break (TB) strips and aluminium reflective (AR) foils are experimentally assessed to evaluate the thermal performance improvement of double-pane lightweight steel-framed (LSF) walls. The faceto- face thermal resistances were measured under laboratory-controlled conditions for sixteen LSF wall configurations. The reliability of the measurements was double-checked making use of a homogeneous XPS single panel, as well as several non-homogeneous double-pane LSF walls. The measurements allowed us to conclude that the effectiveness of the AR foil is greater than the aerogel TB strips. In fact, using an AR foil inside the air cavity of double-pane LSF walls is much more effective than using aerogel TB strips along the steel flange, since only one AR foil (inner or outer) provides a similar thermal resistance increase than two aerogel TB strips, i.e., around +0.47 m2 K/W (+19%). However, the use of two AR foils, instead of a single one, is not effective, since the relative thermal resistance increase is only about +0.04 m2 K/W (+2%).pt
dc.language.isoengpt
dc.relationPOCI-01-0145-FEDER-032061pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectthermal performancept
dc.subjectexperimental assessmentpt
dc.subjectdouble-panept
dc.subjectlightweight steel frame (LSF)pt
dc.subjectpartition wallspt
dc.subjectaerogel thermal break stripspt
dc.subjectaluminium reflective foilspt
dc.titleThermal Performance Improvement of Double-Pane Lightweight Steel Framed Walls Using Thermal Break Strips and Reflective Foilspt
dc.typearticlept
degois.publication.firstPage6927pt
degois.publication.issue21pt
degois.publication.titleEnergiespt
dc.peerreviewedyespt
dc.identifier.doi10.3390/en14216927-
degois.publication.volume14pt
dc.date.embargo2021-01-01*
uc.date.periodoEmbargo0pt
item.openairetypearticle-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.grantfulltextopen-
item.fulltextCom Texto completo-
crisitem.author.researchunitISISE - Institute for Sustainability and Innovation in Structural Engineering-
crisitem.author.orcid0000-0002-0134-6762-
crisitem.author.orcid0000-0003-1074-4364-
Appears in Collections:I&D ISISE - Artigos em Revistas Internacionais
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