Calculation methods for the heat release rate of materials of unknown composition

Hubert Biteau 1, 2 Thomas Steinhaus 1 Christopher Schemel 3 Albert Simeoni 4 Nicolas Bal 1 Jose L. Torero 1 Guy Marlair 2
1 BRE / Centre for fire safety engineering
2 INERIS - Institut National de l'Environnement Industriel et des Risques
3 Packer Engineering, Inc
4 SPE - Sciences pour l'environnement
Abstract : The Heat Release Rate (HRR) is a critical parameter to characterise a fire. Different methods have been developed to estimate it. The most widespread techniques are based on mass balance. If the heat of combustion of the fuel is known, the measure of the mass loss allows its evaluation. If the burning material can not be identified, calorimetric principles can be used. They rely on oxygen consumption (OC) or carbon dioxide and carbon monoxide generation (CDG) measurements. Their asset comes from the observation that the amount of energy release per unit mass of O2 consumed or per unit mass of CO2 produced is relatively constant for a large number of materials. Thus, an accurate HRR can be obtained without knowing the composition of the burning fuel. The aim of this work is to assess this last statement and define how essential the knowledge of the chemistry to calculate HRR for complex materials such as polymers including fire retardants and/or nanocomposites, energetic materials or pine needles is. This assessment ends in an OC and CDG calorimetry comparison of several materials in order to investigate the propensity to determine whether converging or diverging HRR results when average energy constants are used
Keywords : HEAT RELEASE RATE CALORIMETRY FIRE CHEMISTRY POLYMERS ENERGETIC MATERIALS WILDFIRES
Type de document :
Communication dans un congrès
KARLSSON, Bjorn. 9. International Symposium on fire safety science, Sep 2008, Karlsruhe, Germany. IAFSS, pp.NC, 2008
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https://hal-ineris.archives-ouvertes.fr/ineris-00976301
Contributeur : Gestionnaire Civs <>
Soumis le : mercredi 9 avril 2014 - 16:53:04
Dernière modification le : jeudi 11 janvier 2018 - 06:16:28

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  • HAL Id : ineris-00976301, version 1

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Hubert Biteau, Thomas Steinhaus, Christopher Schemel, Albert Simeoni, Nicolas Bal, et al.. Calculation methods for the heat release rate of materials of unknown composition. KARLSSON, Bjorn. 9. International Symposium on fire safety science, Sep 2008, Karlsruhe, Germany. IAFSS, pp.NC, 2008. 〈ineris-00976301〉

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