Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations

Tuomo Rinne, Jukka Hietaniemi, Simo Hostikka

Research output: Book/ReportReport

Abstract

This publication presents an experimental validation of FDS simulations of PMMA, wood, heptane, and toluene fires in a test compartment. The numerical predictions of smoke and gases (CO, CO2 and O2) concentrations, vertical temperature profile, smoke layer height, and visibility are compared against experimental results. Simulations and visualizations were done using FDS and Smokeview version 4.0.5. The results showed that the simulations of CO2 and O2 concentrations and vertical temperature profiles were in good agreement with the measurements. The agreement of the CO concentrations was better in case of toluene and heptane than in case of PMMA and wood. In case of gas concentrations, strong dependency on the grid cell size was observed. For heptane and toluene fuels, the use of default values of Smokeview and FDS leads to good predictions of the view inside a fire compartment. For solid fuels (wood and PMMA) producing smoke that is more gray in colour, the necessary adjustments of the Gray Level visualization parameter are given in order to match the visualizations and video images of the exit sign obscuration.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages47
ISBN (Electronic)978-951-38-6617-4
Publication statusPublished - 2007
MoE publication typeNot Eligible

Publication series

SeriesVTT Working Papers
Number66

Fingerprint

smoke
toluene
visualization
temperature profile
gas
simulation
prediction
visibility
video
fuel wood
parameter
test

Keywords

  • chemical fires
  • emissions
  • toxic gases
  • smoke
  • simulation
  • PMMA
  • wood
  • heptane
  • toluene
  • experimental validation

Cite this

Rinne, T., Hietaniemi, J., & Hostikka, S. (2007). Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations. Espoo: VTT Technical Research Centre of Finland. VTT Working Papers, No. 66
Rinne, Tuomo ; Hietaniemi, Jukka ; Hostikka, Simo. / Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations. Espoo : VTT Technical Research Centre of Finland, 2007. 47 p. (VTT Working Papers; No. 66).
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abstract = "This publication presents an experimental validation of FDS simulations of PMMA, wood, heptane, and toluene fires in a test compartment. The numerical predictions of smoke and gases (CO, CO2 and O2) concentrations, vertical temperature profile, smoke layer height, and visibility are compared against experimental results. Simulations and visualizations were done using FDS and Smokeview version 4.0.5. The results showed that the simulations of CO2 and O2 concentrations and vertical temperature profiles were in good agreement with the measurements. The agreement of the CO concentrations was better in case of toluene and heptane than in case of PMMA and wood. In case of gas concentrations, strong dependency on the grid cell size was observed. For heptane and toluene fuels, the use of default values of Smokeview and FDS leads to good predictions of the view inside a fire compartment. For solid fuels (wood and PMMA) producing smoke that is more gray in colour, the necessary adjustments of the Gray Level visualization parameter are given in order to match the visualizations and video images of the exit sign obscuration.",
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Rinne, T, Hietaniemi, J & Hostikka, S 2007, Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations. VTT Working Papers, no. 66, VTT Technical Research Centre of Finland, Espoo.

Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations. / Rinne, Tuomo; Hietaniemi, Jukka; Hostikka, Simo.

Espoo : VTT Technical Research Centre of Finland, 2007. 47 p. (VTT Working Papers; No. 66).

Research output: Book/ReportReport

TY - BOOK

T1 - Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations

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AU - Hietaniemi, Jukka

AU - Hostikka, Simo

PY - 2007

Y1 - 2007

N2 - This publication presents an experimental validation of FDS simulations of PMMA, wood, heptane, and toluene fires in a test compartment. The numerical predictions of smoke and gases (CO, CO2 and O2) concentrations, vertical temperature profile, smoke layer height, and visibility are compared against experimental results. Simulations and visualizations were done using FDS and Smokeview version 4.0.5. The results showed that the simulations of CO2 and O2 concentrations and vertical temperature profiles were in good agreement with the measurements. The agreement of the CO concentrations was better in case of toluene and heptane than in case of PMMA and wood. In case of gas concentrations, strong dependency on the grid cell size was observed. For heptane and toluene fuels, the use of default values of Smokeview and FDS leads to good predictions of the view inside a fire compartment. For solid fuels (wood and PMMA) producing smoke that is more gray in colour, the necessary adjustments of the Gray Level visualization parameter are given in order to match the visualizations and video images of the exit sign obscuration.

AB - This publication presents an experimental validation of FDS simulations of PMMA, wood, heptane, and toluene fires in a test compartment. The numerical predictions of smoke and gases (CO, CO2 and O2) concentrations, vertical temperature profile, smoke layer height, and visibility are compared against experimental results. Simulations and visualizations were done using FDS and Smokeview version 4.0.5. The results showed that the simulations of CO2 and O2 concentrations and vertical temperature profiles were in good agreement with the measurements. The agreement of the CO concentrations was better in case of toluene and heptane than in case of PMMA and wood. In case of gas concentrations, strong dependency on the grid cell size was observed. For heptane and toluene fuels, the use of default values of Smokeview and FDS leads to good predictions of the view inside a fire compartment. For solid fuels (wood and PMMA) producing smoke that is more gray in colour, the necessary adjustments of the Gray Level visualization parameter are given in order to match the visualizations and video images of the exit sign obscuration.

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KW - toluene

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Rinne T, Hietaniemi J, Hostikka S. Experimental Validation of the FDS Simulations of Smoke and Toxic Gas Concentrations. Espoo: VTT Technical Research Centre of Finland, 2007. 47 p. (VTT Working Papers; No. 66).