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Modeling Fire Growth on Combustible Lining Materials in Enclosures

Karlsson, Björn (1992)
Abstract
An extensive research program, dealing with fire growth on combustible wall lining materials, has been ongoing in Sweden over the last decade. Several lining materials were tested in bench-scale fire tests in order to derive basic material flammability parameters. The same materials were also tested in a full scale room test and a 1/3 scale room test for two different scenarios, A and B. Scenario A refers to the case where walls and ceiling are covered by the lining material, Scenario B where lining materials are mounted on walls only. This study utilises the results from these experiments and presents mathematical models where material properties derived from standardised bench-scale tests are used as input data. The models predict fire... (More)
An extensive research program, dealing with fire growth on combustible wall lining materials, has been ongoing in Sweden over the last decade. Several lining materials were tested in bench-scale fire tests in order to derive basic material flammability parameters. The same materials were also tested in a full scale room test and a 1/3 scale room test for two different scenarios, A and B. Scenario A refers to the case where walls and ceiling are covered by the lining material, Scenario B where lining materials are mounted on walls only. This study utilises the results from these experiments and presents mathematical models where material properties derived from standardised bench-scale tests are used as input data. The models predict fire growth in the full or 1/3 scale tests, and consist of sub-models for calculating the rate of heat release, gas temperatures, radiation to walls, wall surface temperatures and flame spread on the wall lining material. A thermal theory of wind-aided flame spread on thick solids is examined and solutions are given for flame spread velocities under ceilings and in wall-ceiling intersections. Flame extensions under a ceiling, associated with these processes, are discussed and the behaviour of the solutions analysed. The results from the models are compared with experiments on 22 materials tested in the full scale room and 13 materials tested in the 1/3 scale room for Scenario A. Comparisons for Scenario B are made with 4 materials in full scale and 10 materials in 1/3 scale. The results show reasonably good agreement for most materials between the model and the experiments. (Less)
Please use this url to cite or link to this publication:
author
supervisor
opponent
  • Professor Quintiere , Jim, University of Maryland, USA
publishing date
type
Thesis
publication status
published
subject
keywords
flame extension, fire growth, flame spread, lining materials
pages
201 pages
publisher
Lund University, Department of Fire Safety Engineering
defense location
V:A, John Ericssons Väg 1, LUND
defense date
1992-09-29 10:15
external identifiers
  • other:TVBB--1009--SE
  • other:ISRN:LUDVDG
ISSN
1102-8246
language
English
LU publication?
no
id
46258844-c067-44da-881a-69ae558e09d6 (old id 1669903)
date added to LUP
2010-09-10 13:55:13
date last changed
2016-09-19 08:44:56
@phdthesis{46258844-c067-44da-881a-69ae558e09d6,
  abstract     = {An extensive research program, dealing with fire growth on combustible wall lining materials, has been ongoing in Sweden over the last decade. Several lining materials were tested in bench-scale fire tests in order to derive basic material flammability parameters. The same materials were also tested in a full scale room test and a 1/3 scale room test for two different scenarios, A and B. Scenario A refers to the case where walls and ceiling are covered by the lining material, Scenario B where lining materials are mounted on walls only. This study utilises the results from these experiments and presents mathematical models where material properties derived from standardised bench-scale tests are used as input data. The models predict fire growth in the full or 1/3 scale tests, and consist of sub-models for calculating the rate of heat release, gas temperatures, radiation to walls, wall surface temperatures and flame spread on the wall lining material. A thermal theory of wind-aided flame spread on thick solids is examined and solutions are given for flame spread velocities under ceilings and in wall-ceiling intersections. Flame extensions under a ceiling, associated with these processes, are discussed and the behaviour of the solutions analysed. The results from the models are compared with experiments on 22 materials tested in the full scale room and 13 materials tested in the 1/3 scale room for Scenario A. Comparisons for Scenario B are made with 4 materials in full scale and 10 materials in 1/3 scale. The results show reasonably good agreement for most materials between the model and the experiments.},
  author       = {Karlsson, Björn},
  issn         = {1102-8246},
  keyword      = {flame extension,fire growth,flame spread,lining materials},
  language     = {eng},
  pages        = {201},
  publisher    = {Lund University, Department of Fire Safety Engineering},
  title        = {Modeling Fire Growth on Combustible Lining Materials in Enclosures},
  year         = {1992},
}