Sensitivity analysis applied to the pyrolysis of charring and non-charring materials under a cone calorimeter

IF 1.9 4区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Journal of Fire Sciences Pub Date : 2022-11-01 DOI:10.1177/07349041221134486

Manon Fleurotte, O. Authier, S. Bourbigot, G. Fontaine, G. Debenest, A. Amokrane

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引用次数: 1

Abstract

A sensitivity analysis is performed using the Morris method to prioritize the input parameters of a pyrolysis model according to their degree of influence on the heat release rate (HRR). Moreover, this sensitivity analysis aims determining possible interactions between the input parameters. Indeed, this important aspect is original and at our best knowledge has never been studied in the past. Two materials are studied under cone calorimeter: a non-charring (poly(methyl methacrylate) (PMMA)) and a charring one (polyvinyl chloride (PVC)). Different thicknesses and external heat fluxes are studied to determine their effects on the parameters influence. With regard to PMMA, the most influent parameters are the activation energy, the emissivity, the density and the heat capacity. For the PVC, the most influent parameters are the activation energies. For the PVC, this study showed the existence of interactions between input parameters. This result is original and shows the importance of considering this in sensitivity analysis studies.

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灵敏度分析应用于锥形量热计下炭化和非炭化物料的热解

使用Morris方法进行灵敏度分析，根据热解模型的输入参数对热释放速率（HRR）的影响程度对其进行优先级排序。此外，这种灵敏度分析旨在确定输入参数之间可能的相互作用。事实上，这一重要方面是独创的，在我们看来，过去从未对其进行过研究。在锥形量热计下研究了两种材料：非炭化材料（聚甲基丙烯酸甲酯（PMMA））和炭化材料（聚氯乙烯（PVC））。研究了不同厚度和外部热通量对参数影响的影响。对于PMMA，影响最大的参数是活化能、发射率、密度和热容。对于PVC，最重要的影响参数是活化能。对于PVC，本研究表明输入参数之间存在相互作用。这一结果具有独创性，表明了在敏感性分析研究中考虑这一点的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Fire Sciences 工程技术-材料科学：综合

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

2.5 months

期刊介绍： The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).