Role of airtightness in energy loss from windows: Experimental results from in-situ tests

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dc.authorid47560946200
dc.contributor.authorCuce E.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:20Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:20Z
dc.date.issued2017
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe rate of air leakage related energy loss from glazed areas is unequivocal especially in older and poorly installed windows. Therefore, in this research, a comprehensive experimental investigation is done to analyse the importance of air leakage on overall heat transfer coefficient (U-value) of conventional air filled double glazed windows. The tests are conducted in a typical UK dwelling of Nottingham fitted with traditional air filled double glazed windows. One sash of the test window is sealed internally with a special transparent cover to provide excellent airtightness whereas the second window sash is left as it is to represent the ordinary case. The experiments are conducted in April 2016, and dynamic co-heating test methodology is applied to evaluate the rate of enhancement in the U-value of airtight window sash. The results indicate that the airtight window sash has a notably lower U-value compared to the ordinary window sash due to the impact of airtightness and reverse heat flux during noon time owing to the greenhouse effect between transparent cover and internal glazing. The overall U-value of ordinary window sash is found to be 2.67 W/m2K, whereas it is 1.79 W/m2K for airtight window sash. It is observed that about 33% of reduction in heat losses can be achieved via airtight windows. © 2017 Elsevier B.V.en_US
dc.identifier.doi10.1016/j.enbuild.2017.01.027
dc.identifier.endpage455
dc.identifier.issn0378-7788
dc.identifier.scopus2-s2.0-85009955995en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage449
dc.identifier.urihttps://dx.doi.org/10.1016/j.enbuild.2017.01.027
dc.identifier.urihttps://hdl.handle.net/20.500.12403/512
dc.identifier.volume139
dc.identifier.wosWOS:000395599200042en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltd
dc.relation.ispartofEnergy and Buildingsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAir leakage
dc.subjectAirtightness
dc.subjectDouble glazed windows
dc.subjectEnergy saving
dc.subjectHeat loss
dc.subjectU-value
dc.subjectEnergy conservation
dc.subjectEnergy dissipation
dc.subjectGreenhouse effect
dc.subjectHeat flux
dc.subjectHeat losses
dc.subjectHeat transfer
dc.subjectAir leakage
dc.subjectAirtightness
dc.subjectCo-heating
dc.subjectDouble-glazed window
dc.subjectExperimental investigations
dc.subjectIn-situ test
dc.subjectOverall heat transfer coefficient
dc.subjectU values
dc.subjectWindows
dc.subjectAir leakage
dc.subjectAirtightness
dc.subjectDouble glazed windows
dc.subjectEnergy saving
dc.subjectHeat loss
dc.subjectU-value
dc.subjectEnergy conservation
dc.subjectEnergy dissipation
dc.subjectGreenhouse effect
dc.subjectHeat flux
dc.subjectHeat losses
dc.subjectHeat transfer
dc.subjectAir leakage
dc.subjectAirtightness
dc.subjectCo-heating
dc.subjectDouble-glazed window
dc.subjectExperimental investigations
dc.subjectIn-situ test
dc.subjectOverall heat transfer coefficient
dc.subjectU values
dc.subjectWindows
dc.titleRole of airtightness in energy loss from windows: Experimental results from in-situ testsen_US
dc.typeArticleen_US

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