Title :

Influence of parameter variation intervals on pyrolysis sensitivity analysis for charring and non-charring materials

Author(s) :

Amokrane, Abdenour [Auteur]
Fleurotte, Manon [Auteur]
Hodroj, Ali [Auteur]
Authier, Olivier [Auteur]
Debenest, Gérald [Auteur]
Fontaine, Gaelle [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Bourbigot, Serge [Auteur]
Institut universitaire de France [IUF]
Unité Matériaux et Transformations (UMET) - UMR 8207

Journal title :

Journal of Fire Sciences

Abbreviated title :

Journal of Fire Sciences

Volume number :

42

Pages :

363-404

Publisher :

SAGE Publications

Publication date :

2024-05-28

ISSN :

0734-9041

English keyword(s) :

Sensitivity analysis
Pyrolysis
Morris method
Heat release rate
Parameter variation
PMMA
PVC
Cone calorimeter

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères
Physique [physics]/Mécanique [physics]/Mécanique des fluides [physics.class-ph]

English abstract : [en]

This study applies the Morris method for a sensitivity analysis to evaluate the input parameters’ influence on the heat release rate in a pyrolysis model, focusing on two materials, poly(methyl methacrylate) (non-charring) ...
Show more >This study applies the Morris method for a sensitivity analysis to evaluate the input parameters’ influence on the heat release rate in a pyrolysis model, focusing on two materials, poly(methyl methacrylate) (non-charring) and poly(vinyl chloride) (charring), examined under a cone calorimeter. A key aspect of our exploration was the role of input parameter variation intervals on the sensitivity outcomes. We analyzed three interval-setting methods: 1. A standard ±10% deviation from the nominal value, commonly used in the literature. 2. A range determined by the experimental uncertainties for individual parameters. 3. A span from minimum to maximum values found in existing literature for each parameter. Our intensive literature review supported the framing of intervals for the latter two methods. Our findings underscore the critical role of the selected variation interval. Specifically, while a uniform ±10% variation identified activation energies as the primary influencers—consistent with prior literature—the introduction of experimental uncertainties shifted this prominence toward heats of reaction. Thus, the selected interval can drastically reshape the perceived importance of certain parameters. This original work challenges the traditionally employed variation ranges in sensitivity studies, emphasizing the need for a nuanced approach.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2024-08-30T12:39:13Z
2024-09-04T07:01:21Z