Spreadsheet tools to estimate the thermal transmittance and thermal conductivities of gas spaces of an Insulated Glazing Unit

Hdl Handle:
http://hdl.handle.net/10034/620240
Title:
Spreadsheet tools to estimate the thermal transmittance and thermal conductivities of gas spaces of an Insulated Glazing Unit
Authors:
Nammi, Sathish K.; Shirvani, Hassan; Shirvani, Ayoub; Edwards, Gerard; Dunn, Jeremy
Abstract:
An Insulated Glazing unit (IGU) is constructed with two or more layers of glass panes sealed together by gas spaces in-between. IGUs are prevalent in windows, doors and rooflights, primarily due to their improved thermal resistance. Today, most IGUs are either two or three layered. Adding further layers of glass improves thermal insulation but with the penalty of increased cost and weight. Low emissivity (Low-e) film coatings, when deposited on the glass panes, reduce long-wavelength radiative heat losses. Furthermore, filling the gas spaces with the inert gases (e.g. Argon, Krypton, Xenon and SF6), further reduce conduction and natural convection across the gap. In summary, higher thermal insulation performance of an IGU can be achieved with gas fillings and Low-e coatings on glass. This report discusses spreadsheets that have been developed, capable of estimating the thermal transmittance values of IGU, as per BS EN 673. The spreadsheet tools also have the ability to estimate the thermal conductivity of the gas spaces between the panes of IGU.
Affiliation:
Anglia Ruskin University, Anglia Ruskin University, Anglia Ruskin University, University of Chester, Glazing Vision
Citation:
Nammi, S.K., Shirvani, H., Shirvani, A., Edwards, G. & Dunn, J. (2014). Spreadsheet tools to estimate the thermal transmittance and thermal conductivities of gas spaces of an Insulated Glazing Unit. Cambridge; Chelmsford: Anglia Ruskin University.
Publisher:
Anglia Ruskin Research Online
Publication Date:
Mar-2014
URI:
http://hdl.handle.net/10034/620240
Additional Links:
http://arro.anglia.ac.uk/313715/
Type:
Technical Report
Language:
en
ISSN:
9780956560872
Appears in Collections:
Electronic and Electrical Engineering

Full metadata record

DC FieldValue Language
dc.contributor.authorNammi, Sathish K.en
dc.contributor.authorShirvani, Hassanen
dc.contributor.authorShirvani, Ayouben
dc.contributor.authorEdwards, Gerarden
dc.contributor.authorDunn, Jeremyen
dc.date.accessioned2016-11-03T15:58:21Z-
dc.date.available2016-11-03T15:58:21Z-
dc.date.issued2014-03-
dc.identifier.citationNammi, S.K., Shirvani, H., Shirvani, A., Edwards, G. & Dunn, J. (2014). Spreadsheet tools to estimate the thermal transmittance and thermal conductivities of gas spaces of an Insulated Glazing Unit. Cambridge; Chelmsford: Anglia Ruskin University.en
dc.identifier.issn9780956560872-
dc.identifier.urihttp://hdl.handle.net/10034/620240-
dc.description.abstractAn Insulated Glazing unit (IGU) is constructed with two or more layers of glass panes sealed together by gas spaces in-between. IGUs are prevalent in windows, doors and rooflights, primarily due to their improved thermal resistance. Today, most IGUs are either two or three layered. Adding further layers of glass improves thermal insulation but with the penalty of increased cost and weight. Low emissivity (Low-e) film coatings, when deposited on the glass panes, reduce long-wavelength radiative heat losses. Furthermore, filling the gas spaces with the inert gases (e.g. Argon, Krypton, Xenon and SF6), further reduce conduction and natural convection across the gap. In summary, higher thermal insulation performance of an IGU can be achieved with gas fillings and Low-e coatings on glass. This report discusses spreadsheets that have been developed, capable of estimating the thermal transmittance values of IGU, as per BS EN 673. The spreadsheet tools also have the ability to estimate the thermal conductivity of the gas spaces between the panes of IGU.en
dc.language.isoenen
dc.publisherAnglia Ruskin Research Onlineen
dc.relation.urlhttp://arro.anglia.ac.uk/313715/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectInsulated Glazing Uniten
dc.subjectLow emissivity film coatingsen
dc.subjectthermal transmittanceen
dc.titleSpreadsheet tools to estimate the thermal transmittance and thermal conductivities of gas spaces of an Insulated Glazing Uniten
dc.typeTechnical Reporten
dc.contributor.departmentAnglia Ruskin University, Anglia Ruskin University, Anglia Ruskin University, University of Chester, Glazing Visionen
dc.date.accepted2014-03-06-
or.grant.openaccessYesen
rioxxterms.funderUnfundeden
rioxxterms.identifier.projectUnfundeden
rioxxterms.versionAMen
rioxxterms.licenseref.startdate2214-03-31-
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