A new model to predict pyrolysis, ignition and burning of flammable materials in fire tests

Snegirev, A. Yu.; Talalov, V. A.; Stepanov, V.; Harris, Joel

doi:10.1016/j.firesaf.2013.03.012

Cited by 46 publications

(30 citation statements)

References 18 publications

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“…The other classical way is the calculation of heat conductivity by the weighed sum of k coefficients considering non-porous and porous media and gases (e.g., see [41][42][43]). …”

Section: Thermal Aspectsmentioning

confidence: 99%

Intumescence: Tradition versus novelty. A comprehensive review

Alongi

Han

Bourbigot³

2015

Progress in Polymer Science

459

295

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“…The other classical way is the calculation of heat conductivity by the weighed sum of k coefficients considering non-porous and porous media and gases (e.g., see [41][42][43]). …”

Section: Thermal Aspectsmentioning

confidence: 99%

Intumescence: Tradition versus novelty. A comprehensive review

Alongi

Han

Bourbigot³

2015

Progress in Polymer Science

459

295

View full text Add to dashboard Cite

“…17 The influence of physical, optical, and chemical properties on polymer decomposition using radiative heat flux has been studied previously. 7,13,[18][19][20] For thermally thick solids, the material ignition and flame spread properties are mainly governed by material thermal conductivity, density, and heat capacity. 19 The knowledge of the decomposition reaction parameters is also of key importance to predict the peak and average rate of heat release.…”

Section: Introductionmentioning

confidence: 99%

Influence of model assumptions on charring polymer decomposition in the cone calorimeter

Murer¹,

Chatenet

Fontaine

et al. 2018

Journal of Fire Sciences

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This article addresses the one-dimensional modeling of a charring polymer decomposition in the cone calorimeter used to reproduce at bench scale the radiative heating from a fire. The ratecontrolling phenomena are first discussed in a preliminary analysis of dimensionless numbers. Then, the role of three critical assumptions is highlighted by simulations: (1) transport of the gaseous products within the material or instantaneous release of gaseous products, (2) volume variation or constant volume, and (3) absorption of applied heat flux at the exposed face or through the thickness. Their influence in thermally thick regime is shown in particular on mass loss rate and time to extinction. Under the conditions tested, the influence of internal transport by convection on mass loss rate and time to extinction is minor. The assumption of constant volume appears to have a moderate influence on the mass loss rate and time to extinction. Variations of optical properties affect the numerical results by an increase of the maximum peak of mass loss rate and a decrease of time to extinction. Finally, the effects of applied heat flux and initial material thickness on the mass loss rate and time to extinction are important. With a higher heat flux or a smaller thickness, the decomposition is earlier, faster, and more intense.

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“…Different approaches have been used to describe solid fuel combustion in a cone calorimeter. The simplest one consists of thermokinetic models for the solid-phase processes only, [5][6][7][8][9][10][11][12] where the effects of the heat flux from the flame are either completely neglected, as quantitative comparison with the measurements is not made, or are taken into account by means of a guessed constant value.…”

Section: Introductionmentioning

confidence: 99%

Numerical evaluation of the flame to solid heat flux during poly(methyl methacrylate) combustion

2018

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Summary The total net heat flux of the flame from a burning solid fuel is an important issue for the formulation of comprehensive solid‐phase models useful for the fire testing of materials, but measurements are often affected by significant inaccuracy. In this study, an evaluation is conducted using a state‐of‐the‐art model, coupling the descriptions of both gas‐ and solid‐phase processes, for a thick poly(methyl methacrylate) slab burning in a cone calorimeter. It is observed that the total net heat flux (conductive and radiant flame heat fluxes minus surface reradiation losses) remains approximately constant (about 18 kW/m2) as the intensity of the cone irradiance increases from 15 to 60 kW/m2. The influences of some model assumptions and the solid degradation kinetics on this process variable are also assessed. Acceptable agreement is obtained between the predicted and the measured mass loss rates.

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A new model to predict pyrolysis, ignition and burning of flammable materials in fire tests

Cited by 46 publications

References 18 publications

Intumescence: Tradition versus novelty. A comprehensive review

Intumescence: Tradition versus novelty. A comprehensive review

Influence of model assumptions on charring polymer decomposition in the cone calorimeter

Numerical evaluation of the flame to solid heat flux during poly(methyl methacrylate) combustion

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