A design of selective solar absorber for high temperature applications

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dc.contributor.authorAl-Rjoub, A.por
dc.contributor.authorRebouta, L.por
dc.contributor.authorCosta, P.por
dc.contributor.authorBarradas, N. P.por
dc.contributor.authorAlves, E.por
dc.contributor.authorFerreira, P. J.por
dc.contributor.authorAbderrafi, K.por
dc.contributor.authorMatilainen, A.por
dc.contributor.authorPischow, K.por
dc.date.accessioned2019-01-02T14:21:06Z
dc.date.available2019-01-02T14:21:06Z
dc.date.issued2018
dc.description.abstractThis study presents a design of multilayer solar selective absorber for high temperature applications. The optical stack of this absorber is composed of four layers deposited by magnetron sputtering on stainless steel substrates. The first is a back-reflector tungsten layer, which is followed by two absorption layers based on CrAlSiNx/ CrAlSiOyNx structure for phase interference. The final layer is an antireflection layer of SiAlOx. The design was theoretically modelled with SCOUT software using transmittance and reflectance curves of individual thin layers, which were deposited on glass substrates. The final design shows simultaneously high solar absorbance = 95.2 % and low emissivity ε= 9.8% (at 400 ºC) together with high thermal stability at 400 ºC, in air, and 600 ºC in vacuum for 650 h.por
dc.description.publicationversioninfo:eu-repo/semantics/publishedVersionpor
dc.description.sponsorshipThe authors acknowledge the support of FCT in the framework of the Strategic Funding UID/FIS/04650/2013 and the financial support of FCT, POCI and PORL operational programs through the project POCI-01-0145- FEDER-016907 (PTDC/CTM-ENE/2882/2014), co-financed by European community fund FEDER.por
dc.distributioninternationalpor
dc.identifier.citationhttps://doi.org/10.1016/j.solener.2018.04.052por
dc.identifier.doi10.1016/j.solener.2018.04.052por
dc.identifier.issn0038-092Xpor
dc.identifier.urihttps://hdl.handle.net/1822/57709
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147414/PTpor
dc.relation.publisherversionwww.elsevier.com/locate/solenerpor
dc.rightsopenAccesspor
dc.subjectSolar selective absorberpor
dc.subjectOptical constantspor
dc.subjectDielectric functionpor
dc.subjectSputtered CrAlSiNx /CrAlSiOyNxpor
dc.subjectSputtered CrAlSiN /CrAlSiO N x y xpor
dc.subject.fosEngenharia e Tecnologia::Engenharia dos Materiaispor
dc.subject.wosScience & Technologypor
dc.titleA design of selective solar absorber for high temperature applicationspor
dc.typearticlepor
dspace.entity.typePublicationen
oaire.citationEndPage183por
oaire.citationStartPage177por
oaire.citationVolume172por
sdum.journalSolar Energypor

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