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dc.contributor.authorZhao, Lin
dc.contributor.authorYang, Sungwoo
dc.contributor.authorBhatia, Bikramjit S
dc.contributor.authorStrobach, Elise M.
dc.contributor.authorWang, Evelyn
dc.date.accessioned2018-09-13T18:45:15Z
dc.date.available2018-09-13T18:45:15Z
dc.date.issued2016-02
dc.date.submitted2015-11
dc.identifier.issn2158-3226
dc.identifier.urihttp://hdl.handle.net/1721.1/117748
dc.description.abstractSilica aerogel has been known as a promising candidate for high performance transparent insulation material (TIM). Optical transparency is a crucial metric for silica aerogels in many solar related applications. Both scattering and absorption can reduce the amount of light transmitted through an aerogel slab. Due to multiple scattering, the transmittance deviates from the Beer-Lambert law (exponential attenuation). To better understand its optical performance, we decoupled and quantified the extinction contributions of absorption and scattering separately by identifying two sets of radiative properties. The radiative properties are deduced from the measured total transmittance and reflectance spectra (from 250 nm to 2500 nm) of synthesized aerogel samples by solving the inverse problem of the 1-D Radiative Transfer Equation (RTE). The obtained radiative properties are found to be independent of the sample geometry and can be considered intrinsic material properties, which originate from the aerogel's microstructure. This finding allows for these properties to be directly compared between different samples. We also demonstrate that by using the obtained radiative properties, we can model the photon transport in aerogels of arbitrary shapes, where an analytical solution is difficult to obtain.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant DMR-1419807)en_US
dc.publisherAIP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.4943215en_US
dc.rightsCreative Commons Attribution 4.0 International Licenseen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceAIPen_US
dc.titleModeling silica aerogel optical performance by determining its radiative propertiesen_US
dc.typeArticleen_US
dc.identifier.citationZhao, Lin et al. “Modeling Silica Aerogel Optical Performance by Determining Its Radiative Properties.” AIP Advances 6, 2 (February 2016): 025123 © 2016 Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineeringen_US
dc.contributor.mitauthorZhao, Lin
dc.contributor.mitauthorYang, Sungwoo
dc.contributor.mitauthorBhatia, Bikramjit S
dc.contributor.mitauthorStrobach, Elise M.
dc.contributor.mitauthorWang, Evelyn
dc.relation.journalAIP Advancesen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-09-13T12:33:24Z
dspace.orderedauthorsZhao, Lin; Yang, Sungwoo; Bhatia, Bikram; Strobach, Elise; Wang, Evelyn N.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-8865-859X
dc.identifier.orcidhttps://orcid.org/0000-0002-6557-4940
dc.identifier.orcidhttps://orcid.org/0000-0003-1537-3080
dc.identifier.orcidhttps://orcid.org/0000-0003-3192-6749
dc.identifier.orcidhttps://orcid.org/0000-0001-7045-1200
mit.licensePUBLISHER_CCen_US


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