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Surface temperature of decomposing construction materials studied by laser-induced phosphorescence

Omrane, Alaa LU ; Ossler, Frederik LU ; Aldén, Marcus LU ; Svenson, J and Pettersson, JBC (2005) In Fire and Materials 29(1). p.39-51
Abstract
Measurements of surface temperature and mass loss of decomposing construction materials during rapid pyrolysis are presented. Experiments have been performed With samples of low-density fiberboard. medium-density fiberboard,. particleboard and poly(methyl methacrylate) in a single particle reactor at temperatures between 300degrees and 600degreesC. Ultraviolet laser light was used to excite micrometer-Sized thermographic phosphor particles that Were deposited on the investigated materials. and the temperature was obtained from temporally resolved measurements of the laser-induced emission. The wood-based materials show a similar behavior, with small differences being attributed to differences in material properties. The surface temperature... (More)
Measurements of surface temperature and mass loss of decomposing construction materials during rapid pyrolysis are presented. Experiments have been performed With samples of low-density fiberboard. medium-density fiberboard,. particleboard and poly(methyl methacrylate) in a single particle reactor at temperatures between 300degrees and 600degreesC. Ultraviolet laser light was used to excite micrometer-Sized thermographic phosphor particles that Were deposited on the investigated materials. and the temperature was obtained from temporally resolved measurements of the laser-induced emission. The wood-based materials show a similar behavior, with small differences being attributed to differences in material properties. The surface temperature rapidly increases to about 400degreesC When a particle is introduced to the hot reactor. The initial phase is followed by rapid decomposition during Which the surface temperature is 380degrees-540degreesC. The heating rate is slowed down during the rapid pyrolysis. and again increases as the remaining char is heated to the reactor temperature. The poly (methyl methacrylate), however. melts and at high temperatures can be characterized as a liquid with a boiling point of about 40degreesC. Thermographic phosphors are concluded to be suitable for high precision remote measurements of the surface temperature of decomposing construction materials, and possibilities for further studies and developments of the technique are discussed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
PMMA, fiberboard, pyrolysis, rapid, surface temperature measurement, laser-induced phosphorescence, particleboard
in
Fire and Materials
volume
29
issue
1
pages
39 - 51
publisher
John Wiley & Sons
external identifiers
  • wos:000226735800004
  • scopus:13444249832
ISSN
1099-1018
DOI
10.1002/fam.876
language
English
LU publication?
yes
id
c5eac36f-7f9d-4436-b30a-d1736990d610 (old id 254922)
date added to LUP
2007-10-05 11:41:40
date last changed
2017-01-01 07:20:21
@article{c5eac36f-7f9d-4436-b30a-d1736990d610,
  abstract     = {Measurements of surface temperature and mass loss of decomposing construction materials during rapid pyrolysis are presented. Experiments have been performed With samples of low-density fiberboard. medium-density fiberboard,. particleboard and poly(methyl methacrylate) in a single particle reactor at temperatures between 300degrees and 600degreesC. Ultraviolet laser light was used to excite micrometer-Sized thermographic phosphor particles that Were deposited on the investigated materials. and the temperature was obtained from temporally resolved measurements of the laser-induced emission. The wood-based materials show a similar behavior, with small differences being attributed to differences in material properties. The surface temperature rapidly increases to about 400degreesC When a particle is introduced to the hot reactor. The initial phase is followed by rapid decomposition during Which the surface temperature is 380degrees-540degreesC. The heating rate is slowed down during the rapid pyrolysis. and again increases as the remaining char is heated to the reactor temperature. The poly (methyl methacrylate), however. melts and at high temperatures can be characterized as a liquid with a boiling point of about 40degreesC. Thermographic phosphors are concluded to be suitable for high precision remote measurements of the surface temperature of decomposing construction materials, and possibilities for further studies and developments of the technique are discussed.},
  author       = {Omrane, Alaa and Ossler, Frederik and Aldén, Marcus and Svenson, J and Pettersson, JBC},
  issn         = {1099-1018},
  keyword      = {PMMA,fiberboard,pyrolysis,rapid,surface temperature measurement,laser-induced phosphorescence,particleboard},
  language     = {eng},
  number       = {1},
  pages        = {39--51},
  publisher    = {John Wiley & Sons},
  series       = {Fire and Materials},
  title        = {Surface temperature of decomposing construction materials studied by laser-induced phosphorescence},
  url          = {http://dx.doi.org/10.1002/fam.876},
  volume       = {29},
  year         = {2005},
}