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Determination of kinetic properties of polyurethane foam decomposition for pyrolysis modelling

Pau, Dennis S.W. / Fleischmann, Charles M. / Spearpoint, Michael J. / Li, Kai Y.

A non-fire-retardant and a fire retardant polyurethane foam are tested under a nitrogen environment using thermogravimetry at different heating rates of 1, 5, 20 and 60 °C min⁻¹ to obtain the foams’ decomposition behaviours. During decomposition, both foams experience two major mass loss reactions with the second reaction consuming most of the fuel. Three graphical techniques applied to calculate the kinetic properties governing each reaction are kinetic analysis, the Arrhenius plot method and the inflection point methods. In general, these methods are compatible with the pyrolysis model within Fire Dynamics Simulator Version 5 and Gpyro. A normalised version of the inflection point methods is also developed to improve the suitability of the kinetic properties with the simplest decomposition scheme of the pyrolysis model. A consistent trend is noted in the calculated kinetic properties of both foams regardless of the calculation techniques applied.

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Determination of kinetic properties of polyurethane foam decomposition for pyrolysis modelling

Pau, Dennis S.W. / Fleischmann, Charles M. / Spearpoint, Michael J. / Li, Kai Y.

A non-fire-retardant and a fire retardant polyurethane foam are tested under a nitrogen environment using thermogravimetry at different heating rates of 1, 5, 20 and 60 °C min⁻¹ to obtain the foams’ decomposition behaviours. During decomposition, both foams experience two major mass loss reactions with the second reaction consuming most of the fuel. Three graphical techniques applied to calculate the kinetic properties governing each reaction are kinetic analysis, the Arrhenius plot method and the inflection point methods. In general, these methods are compatible with the pyrolysis model within Fire Dynamics Simulator Version 5 and Gpyro. A normalised version of the inflection point methods is also developed to improve the suitability of the kinetic properties with the simplest decomposition scheme of the pyrolysis model. A consistent trend is noted in the calculated kinetic properties of both foams regardless of the calculation techniques applied.

Determination of kinetic properties of polyurethane foam decomposition for pyrolysis modelling

Pau, Dennis S.W. / Fleischmann, Charles M. / Spearpoint, Michael J. / Li, Kai Y.

A non-fire-retardant and a fire retardant polyurethane foam are tested under a nitrogen environment using thermogravimetry at different heating rates of 1, 5, 20 and 60 °C min⁻¹ to obtain the foams’ decomposition behaviours. During decomposition, both foams experience two major mass loss reactions with the second reaction consuming most of the fuel. Three graphical techniques applied to calculate the kinetic properties governing each reaction are kinetic analysis, the Arrhenius plot method and the inflection point methods. In general, these methods are compatible with the pyrolysis model within Fire Dynamics Simulator Version 5 and Gpyro. A normalised version of the inflection point methods is also developed to improve the suitability of the kinetic properties with the simplest decomposition scheme of the pyrolysis model. A consistent trend is noted in the calculated kinetic properties of both foams regardless of the calculation techniques applied.

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Title:

Determination of kinetic properties of polyurethane foam decomposition for pyrolysis modelling

Contributors:

Pau, Dennis S.W. (author) / Fleischmann, Charles M. (author) / Spearpoint, Michael J. (author) / Li, Kai Y. (author)

Published in:

Journal of Fire Sciences ; 31 ; 356-384

Publication date:

2013-07-01

Size:

29 pages

ISSN:

0734-9041 , 1530-8049

DOI:

https://doi.org/10.1177/0734904113475858

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

thermogravimetry , kinetic properties , graphical techniques , Pyrolysis , polyurethane foam

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