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The adiabatic surface temperature and the plate thermometer
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
2011 (English)In: Fire safety science: proceedings of the 10th international symposium : [held at College Park, MD, 19-24 June 2011], London: International Association for Fire Safety Science, 2011, p. 1001-1011Conference paper, Published paper (Refereed)
Abstract [en]

The concept of adiabatic surface temperature (AST) opens possibilities to calculate heat transfer to a solid surface based on one temperature instead of two as is needed when heat transfer by both radiation and convection must be considered. The adiabatic surface temperature is defined as the temperature of a surface which cannot absorb or lose heat to the environment, i.e. a perfect insulator. Accordingly, the AST is a weighted mean temperature of the radiation temperature and the gas temperature depending on the heat transfer coefficients. A determining factor for introducing the concept of AST is that it can be measured with an inexpensive and robust method called the plate thermometer (PT) even under harsh fire conditions. Alternative methods for measuring thermal exposure under similar conditions involve water cooled heat flux meters that are in most realistic situations difficult to use and very costly and impractical. This paper presents examples concerning how the concept of AST can be used in practice both in reaction-to-fire tests and in large scale scenarios where structures are exposed to high and inhomogeneous temperature conditions

Place, publisher, year, edition, pages
London: International Association for Fire Safety Science, 2011. p. 1001-1011
National Category
Building Technologies
Research subject
Steel Structures
Identifiers
URN: urn:nbn:se:ltu:diva-27928DOI: 10.3801/IAFSS.FSS.10-1001Local ID: 1854d6ca-4726-469a-acca-b152f0485179OAI: oai:DiVA.org:ltu-27928DiVA, id: diva2:1001119
Conference
International Symposium on Fire Safety Science : 19/06/2011 - 24/06/2011
Note
Godkänd; 2011; 20120229 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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  • apa
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