Publication:
Spectrally selective filter design for passive radiative cooling

dc.contributor.authorKecebas, M. A.
dc.contributor.authorMengüç, Mustafa Pınar
dc.contributor.authorKosar, A.
dc.contributor.authorSendur, K.
dc.contributor.departmentMechanical Engineering
dc.contributor.ozuauthorMENGÜÇ, Mustafa Pınar
dc.date.accessioned2021-03-03T10:58:11Z
dc.date.available2021-03-03T10:58:11Z
dc.date.issued2020-04-01
dc.description.abstractRadiative cooling is potentially one of the most innovative approaches to reducing energy density in buildings and industry, as well as achieving higher levels of energy efficiency. Several studies have reported the design of spectrally selective layered structures for daytime passive radiative cooling. However, a comprehensive design of such systems requires the spectral behavior of different materials and radiative heat transfer mechanisms to be addressed together. Here, we introduce a design methodology for daytime passive radiative cooling with thin film filters which accounts for the spectral tailoring at the visible and infrared spectrum. The major difference of this method is that it does not require a predefined target ideal emittance. The results show that higher cooling powers are possible compared to the previously reported thin-film structures, which were designed from a purely spectral perspective. The underlying mechanisms of the resulting spectral profiles, which give rise to improved performance, are investigated by wave impedance analysis. Cooling powers up to 100 W/m(2) are obtained with seven layers on Ag. The findings of this study indicate that structures with better performance in terms of cooling powers and temperature reduction rates can be obtained following the procedure discussed.en_US
dc.description.sponsorshipUnited States Department of Defense Air Force Office of Scientific Research (AFOSR)
dc.identifier.doi10.1364/JOSAB.384181en_US
dc.identifier.endpage1182en_US
dc.identifier.issn0740-3224en_US
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85083831870
dc.identifier.startpage1173en_US
dc.identifier.urihttp://hdl.handle.net/10679/7358
dc.identifier.urihttps://doi.org/10.1364/JOSAB.384181
dc.identifier.volume37en_US
dc.identifier.wos000522793700033
dc.language.isoengen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.publisherThe Optical Societyen_US
dc.relation.ispartofJournal of the Optical Society of America B: Optical Physics
dc.relation.publicationcategoryInternational Refereed Journal
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.titleSpectrally selective filter design for passive radiative coolingen_US
dc.typeArticleen_US
dspace.entity.typePublication
relation.isOrgUnitOfPublicationdaa77406-1417-4308-b110-2625bf3b3dd7
relation.isOrgUnitOfPublication.latestForDiscoverydaa77406-1417-4308-b110-2625bf3b3dd7

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