In-depth temperature measurements in wood exposed to intense radiant energy

Reszka, P. and Torero, J. L. (2008) In-depth temperature measurements in wood exposed to intense radiant energy. Experimental Thermal and Fluid Science, 32 7: 1405-1411. doi:10.1016/j.expthermflusci.2007.11.014


Author Reszka, P.
Torero, J. L.
Title In-depth temperature measurements in wood exposed to intense radiant energy
Journal name Experimental Thermal and Fluid Science   Check publisher's open access policy
ISSN 0894-1777
1879-2286
Publication date 2008
Year available 2008
Sub-type Article (original research)
DOI 10.1016/j.expthermflusci.2007.11.014
Open Access Status
Volume 32
Issue 7
Start page 1405
End page 1411
Total pages 7
Place of publication Philadelphia, PA United States
Publisher Elsevier Inc.
Collection year 2008
Language eng
Subject 1507 Transportation and Freight Services
2210 Mechanical Engineering
Abstract Modern timber construction techniques rely on metallic connectors. Their failure during fires is related to shear failure, which can happen at lower temperatures than those leading to pyrolysis. Based on this information, a series of tests were carried out exposing wood specimens to various heat fluxes in a Cone Calorimeter on a vertical configuration with no pilot ignition and a normal air atmosphere. The aim of this investigation was to develop a dependable temperature measurement methodology in wood samples exposed to high heat fluxes and to build a data-base in order to assess different wood pyrolysis models. The experiments yielded highly repeatable results that are hard to achieve with wood, although at lower heat fluxes the repeatability was poorer. The data were then normalized using a simple, inert, heat transfer model. It will be used as a tool to assess the importance of different terms that are incorporated in models that predict in-depth temperature profiles for wood. The samples behaved almost like an inert solid when subjected to low heat fluxes. Poorer repeatability at the lower levels of heat flux is justified by the beginning of pyrolytic reactions in wood at about 10 kW m-2.
Keyword Cone Calorimeter
Timber structures
Wood pyrolysis
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Civil Engineering Publications
 
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Created: Fri, 08 Aug 2014, 09:51:08 EST by Julie Hunter on behalf of School of Civil Engineering