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Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites

In this work, the fire reaction properties of flax-polypropylene (PP) composites were investigated at multiple sample angles both experimentally and numerically under two different heat flux conditions (35 and 50 kW/m(2)) in the cone calorimeter environment. An innovative testing setup which can acc...

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Autores principales: Dutta, Swagata, Kim, Nam Kyeun, Das, Raj, Bhattacharyya, Debes
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400171/
https://www.ncbi.nlm.nih.gov/pubmed/34451125
http://dx.doi.org/10.3390/polym13162586
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author Dutta, Swagata
Kim, Nam Kyeun
Das, Raj
Bhattacharyya, Debes
author_facet Dutta, Swagata
Kim, Nam Kyeun
Das, Raj
Bhattacharyya, Debes
author_sort Dutta, Swagata
collection PubMed
description In this work, the fire reaction properties of flax-polypropylene (PP) composites were investigated at multiple sample angles both experimentally and numerically under two different heat flux conditions (35 and 50 kW/m(2)) in the cone calorimeter environment. An innovative testing setup which can accommodate a wide range of angles between 0° and 90° for the sample angle frame was developed to perform cone calorimeter tests at different sample angles. An advanced numerical predictive model based on the finite volume method was developed using the fire dynamics simulator (FDS) to quantify the dependency of ignition and combustion properties with sample angles. The numerical model was validated against experimental data from the cone calorimeter tests. The experimental and numerical analyses were conducted to quantify the effects of sample orientation on the different fire reaction properties i.e., ignition time, ignition temperature, burn time, heat release rate (HRR), critical heat flux, etc. The numerical method was utilised to analyse the mechanisms controlling the effect of heat convection and radiation blockage on the heating process. The study establishes that the sample orientation (with respect to the heat flux normal) has a significant influence on the fire reaction properties of natural fibre composites.
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spelling pubmed-84001712021-08-29 Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites Dutta, Swagata Kim, Nam Kyeun Das, Raj Bhattacharyya, Debes Polymers (Basel) Article In this work, the fire reaction properties of flax-polypropylene (PP) composites were investigated at multiple sample angles both experimentally and numerically under two different heat flux conditions (35 and 50 kW/m(2)) in the cone calorimeter environment. An innovative testing setup which can accommodate a wide range of angles between 0° and 90° for the sample angle frame was developed to perform cone calorimeter tests at different sample angles. An advanced numerical predictive model based on the finite volume method was developed using the fire dynamics simulator (FDS) to quantify the dependency of ignition and combustion properties with sample angles. The numerical model was validated against experimental data from the cone calorimeter tests. The experimental and numerical analyses were conducted to quantify the effects of sample orientation on the different fire reaction properties i.e., ignition time, ignition temperature, burn time, heat release rate (HRR), critical heat flux, etc. The numerical method was utilised to analyse the mechanisms controlling the effect of heat convection and radiation blockage on the heating process. The study establishes that the sample orientation (with respect to the heat flux normal) has a significant influence on the fire reaction properties of natural fibre composites. MDPI 2021-08-04 /pmc/articles/PMC8400171/ /pubmed/34451125 http://dx.doi.org/10.3390/polym13162586 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dutta, Swagata
Kim, Nam Kyeun
Das, Raj
Bhattacharyya, Debes
Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title_full Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title_fullStr Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title_full_unstemmed Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title_short Evaluating Orientation Effects on the Fire Reaction Properties of Flax-Polypropylene Composites
title_sort evaluating orientation effects on the fire reaction properties of flax-polypropylene composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8400171/
https://www.ncbi.nlm.nih.gov/pubmed/34451125
http://dx.doi.org/10.3390/polym13162586
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