An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air

O. Korobeinichev, R. Glaznev, A. Karpov, A. Shaklein, A. Shmakov, A. Paletsky, S. Trubachev, Y. Hu, X. Wang, W. Hu

Результат исследования: Научные публикации в периодических изданияхстатья

Выдержка

A comprehensive study of thermal decomposition and combustion of a horizontally placed polyoxymethylene (POM) slab was performed. The kinetic parameters of thermal degradation of POM in supposition of two parallel reactions were determined and were used for simulation of the flame spread over the POM. The following main characteristics of the POM slab's combustion were measured: the flame spread rate, the slab's mass loss rate, the width of the pyrolysis zone, the flame height, the temperature profile of the upper and lower surfaces of the slab, the temperature field and the fields of the main flame species concentrations over the burning slab, and the conductive heat flux from the flame onto the fuel surface. It was concluded from analysis of experimental data that two global gas phase reactions may be identified: the reaction of formaldehyde pyrolysis with light combustible gas formed (with the properties close to those of СО) and the subsequent reaction of its oxidation in the flame to the end combustion products (СО2+H2O). This approach was implemented as the coupled combustion model was modified, taking into account a two-step reaction in the gas phase. The results of the calculations made showed good agreement with the experimental data.

Язык оригиналаанглийский
Номер статьи102924
ЖурналFire Safety Journal
Том111
DOI
СостояниеОпубликовано - янв 2020

Отпечаток

flames
slabs
Pyrolysis
air
Computer simulation
Air
Gases
simulation
pyrolysis
vapor phases
combustion products
Kinetic parameters
Formaldehyde
thermal degradation
Heat flux
formaldehyde
Temperature distribution
temperature profiles
thermal decomposition
delrin

Цитировать

Korobeinichev, O. ; Glaznev, R. ; Karpov, A. ; Shaklein, A. ; Shmakov, A. ; Paletsky, A. ; Trubachev, S. ; Hu, Y. ; Wang, X. ; Hu, W. / An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air. В: Fire Safety Journal. 2020 ; Том 111.
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title = "An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air",
abstract = "A comprehensive study of thermal decomposition and combustion of a horizontally placed polyoxymethylene (POM) slab was performed. The kinetic parameters of thermal degradation of POM in supposition of two parallel reactions were determined and were used for simulation of the flame spread over the POM. The following main characteristics of the POM slab's combustion were measured: the flame spread rate, the slab's mass loss rate, the width of the pyrolysis zone, the flame height, the temperature profile of the upper and lower surfaces of the slab, the temperature field and the fields of the main flame species concentrations over the burning slab, and the conductive heat flux from the flame onto the fuel surface. It was concluded from analysis of experimental data that two global gas phase reactions may be identified: the reaction of formaldehyde pyrolysis with light combustible gas formed (with the properties close to those of СО) and the subsequent reaction of its oxidation in the flame to the end combustion products (СО2+H2O). This approach was implemented as the coupled combustion model was modified, taking into account a two-step reaction in the gas phase. The results of the calculations made showed good agreement with the experimental data.",
keywords = "Flame spread, Flame structure, Flammability, Heat fluxes, Micro thermocouple, Numerical simulation, Polymer, Polymer pyrolysis kinetics, Polyoxymethylene, Probing mass spectrometry",
author = "O. Korobeinichev and R. Glaznev and A. Karpov and A. Shaklein and A. Shmakov and A. Paletsky and S. Trubachev and Y. Hu and X. Wang and W. Hu",
year = "2020",
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doi = "10.1016/j.firesaf.2019.102924",
language = "English",
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Korobeinichev, O, Glaznev, R, Karpov, A, Shaklein, A, Shmakov, A, Paletsky, A, Trubachev, S, Hu, Y, Wang, X & Hu, W 2020, 'An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air', Fire Safety Journal, том. 111, 102924. https://doi.org/10.1016/j.firesaf.2019.102924

An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air. / Korobeinichev, O.; Glaznev, R.; Karpov, A.; Shaklein, A.; Shmakov, A.; Paletsky, A.; Trubachev, S.; Hu, Y.; Wang, X.; Hu, W.

В: Fire Safety Journal, Том 111, 102924, 01.2020.

Результат исследования: Научные публикации в периодических изданияхстатья

TY - JOUR

T1 - An experimental study and numerical simulation of horizontal flame spread over polyoxymethylene in still air

AU - Korobeinichev, O.

AU - Glaznev, R.

AU - Karpov, A.

AU - Shaklein, A.

AU - Shmakov, A.

AU - Paletsky, A.

AU - Trubachev, S.

AU - Hu, Y.

AU - Wang, X.

AU - Hu, W.

PY - 2020/1

Y1 - 2020/1

N2 - A comprehensive study of thermal decomposition and combustion of a horizontally placed polyoxymethylene (POM) slab was performed. The kinetic parameters of thermal degradation of POM in supposition of two parallel reactions were determined and were used for simulation of the flame spread over the POM. The following main characteristics of the POM slab's combustion were measured: the flame spread rate, the slab's mass loss rate, the width of the pyrolysis zone, the flame height, the temperature profile of the upper and lower surfaces of the slab, the temperature field and the fields of the main flame species concentrations over the burning slab, and the conductive heat flux from the flame onto the fuel surface. It was concluded from analysis of experimental data that two global gas phase reactions may be identified: the reaction of formaldehyde pyrolysis with light combustible gas formed (with the properties close to those of СО) and the subsequent reaction of its oxidation in the flame to the end combustion products (СО2+H2O). This approach was implemented as the coupled combustion model was modified, taking into account a two-step reaction in the gas phase. The results of the calculations made showed good agreement with the experimental data.

AB - A comprehensive study of thermal decomposition and combustion of a horizontally placed polyoxymethylene (POM) slab was performed. The kinetic parameters of thermal degradation of POM in supposition of two parallel reactions were determined and were used for simulation of the flame spread over the POM. The following main characteristics of the POM slab's combustion were measured: the flame spread rate, the slab's mass loss rate, the width of the pyrolysis zone, the flame height, the temperature profile of the upper and lower surfaces of the slab, the temperature field and the fields of the main flame species concentrations over the burning slab, and the conductive heat flux from the flame onto the fuel surface. It was concluded from analysis of experimental data that two global gas phase reactions may be identified: the reaction of formaldehyde pyrolysis with light combustible gas formed (with the properties close to those of СО) and the subsequent reaction of its oxidation in the flame to the end combustion products (СО2+H2O). This approach was implemented as the coupled combustion model was modified, taking into account a two-step reaction in the gas phase. The results of the calculations made showed good agreement with the experimental data.

KW - Flame spread

KW - Flame structure

KW - Flammability

KW - Heat fluxes

KW - Micro thermocouple

KW - Numerical simulation

KW - Polymer

KW - Polymer pyrolysis kinetics

KW - Polyoxymethylene

KW - Probing mass spectrometry

UR - http://www.scopus.com/inward/record.url?scp=85076717119&partnerID=8YFLogxK

U2 - 10.1016/j.firesaf.2019.102924

DO - 10.1016/j.firesaf.2019.102924

M3 - Article

AN - SCOPUS:85076717119

VL - 111

JO - Fire Safety Journal

JF - Fire Safety Journal

SN - 0379-7112

M1 - 102924

ER -