Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry

[EN] A numerical study of the effects of air dilution on soot formation and particle dynamics in a lab-scale rich-quench-lean (RQL) combustor is presented using large-eddy simulations (LES) with tabulated chemistry. The modeling approach comprises a flamelet generated manifold (FGM) turbulent combus...

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Authors: Pachano-Prieto, Leonardo Manuel, Kalbhor, Abhijit, Mira, Daniel, Van-Oijen, Jeroen
Format: article
Publication Date:2024
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/212110
Online Access:https://riunet.upv.es/handle/10251/212110
Access Level:Embargoed access
Keyword:Large-eddy simulation
Soot modeling
Discrete sectional method
Tabulated chemistry
Rich-quench-lean combustor
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spelling Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistryPachano-Prieto, Leonardo ManuelKalbhor, AbhijitMira, DanielVan-Oijen, JeroenLarge-eddy simulationSoot modelingDiscrete sectional methodTabulated chemistryRich-quench-lean combustor[EN] A numerical study of the effects of air dilution on soot formation and particle dynamics in a lab-scale rich-quench-lean (RQL) combustor is presented using large-eddy simulations (LES) with tabulated chemistry. The modeling approach comprises a flamelet generated manifold (FGM) turbulent combustion model and an efficient discrete sectional method with clustering of sections (CDSM) to model soot formation. Three operating conditions are studied including a reference case without secondary air dilution and two cases with varying air dilution levels. For the latter, the split between primary and dilution air is varied from 80:20 to 60:40 expressed in percentage values. The study aims to investigate the effect of air dilution on the formation and oxidation of soot for various air splits using a direct comparison with the available experimental data. The results show a good correlation between predicted flame topology and spatial distribution of the soot volume fraction with the experimental observations. The introduction of air dilution is found to limit the production of soot with a more drastic reduction for the 40% dilution case compared to the 20% condition. Predicted particle size distributions (PSD) from the case without secondary air dilution correlate well with scanning mobility particle sizer (SMPS) measurements although fewer and smaller particles are predicted with air dilution. Leaner mixtures and enhanced oxidation, resulting from the interaction with air dilution jets, favor the decrease in soot formation.This project received funding from the Center of Excellence in Combustion project (grant agreement No 952181), the AHEAD PID2020-118387RB-C33 and SAFLOW TED2021-131618B-C2 projects (Ministerio de Ciencia e Innovacion). LP acknowledges the Margarita Salas grant (Ministerio de Universidades, EU-Next Generation EU) and DM acknowledges the grant Ramon y Cajal RYC2021-034654-I. The authors acknowledge computer resources from Red Espanola de Supercomputacion, Spain (IM-2023-2-0011 and IM-2023-3-0013) .ElsevierEuropean CommissionAgencia Estatal de InvestigaciónRed Española de SupercomputaciónMinisterio de Ciencia e InnovaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20242024-01-0120242024-11-2120262026-12-31journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/212110reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-118387RB-C33 CALCULO DE NUEVOS DESARROLLOS NUMERICOS PARA AHEADEuropean Commission https://doi.org/10.13039/501100000780 H2020 952181 Center of Excellence in CombustionRed Española de Supercomputación RES IM-2023-2-0011Red Española de Supercomputación RES IM-2023-3-0013Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 TED2021-131618B-C21Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 RYC2021-034654-Iembargoed accesshttp://purl.org/coar/access_right/c_f1cfReconocimiento - No comercial - Sin obra derivada (by-nc-nd) http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/embargoedAccessoai:riunet.upv.es:10251/2121102026-06-13T07:49:27Z
dc.title.none.fl_str_mv Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
title Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
spellingShingle Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
Pachano-Prieto, Leonardo Manuel
Large-eddy simulation
Soot modeling
Discrete sectional method
Tabulated chemistry
Rich-quench-lean combustor
title_short Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
title_full Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
title_fullStr Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
title_full_unstemmed Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
title_sort Analysis of soot formation in a lab-scale Rich-Quench-Lean combustor using LES with tabulated chemistry
dc.creator.none.fl_str_mv Pachano-Prieto, Leonardo Manuel
Kalbhor, Abhijit
Mira, Daniel
Van-Oijen, Jeroen
author Pachano-Prieto, Leonardo Manuel
author_facet Pachano-Prieto, Leonardo Manuel
Kalbhor, Abhijit
Mira, Daniel
Van-Oijen, Jeroen
author_role author
author2 Kalbhor, Abhijit
Mira, Daniel
Van-Oijen, Jeroen
author2_role author
author
author
dc.contributor.none.fl_str_mv European Commission
Agencia Estatal de Investigación
Red Española de Supercomputación
Ministerio de Ciencia e Innovación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Large-eddy simulation
Soot modeling
Discrete sectional method
Tabulated chemistry
Rich-quench-lean combustor
topic Large-eddy simulation
Soot modeling
Discrete sectional method
Tabulated chemistry
Rich-quench-lean combustor
description [EN] A numerical study of the effects of air dilution on soot formation and particle dynamics in a lab-scale rich-quench-lean (RQL) combustor is presented using large-eddy simulations (LES) with tabulated chemistry. The modeling approach comprises a flamelet generated manifold (FGM) turbulent combustion model and an efficient discrete sectional method with clustering of sections (CDSM) to model soot formation. Three operating conditions are studied including a reference case without secondary air dilution and two cases with varying air dilution levels. For the latter, the split between primary and dilution air is varied from 80:20 to 60:40 expressed in percentage values. The study aims to investigate the effect of air dilution on the formation and oxidation of soot for various air splits using a direct comparison with the available experimental data. The results show a good correlation between predicted flame topology and spatial distribution of the soot volume fraction with the experimental observations. The introduction of air dilution is found to limit the production of soot with a more drastic reduction for the 40% dilution case compared to the 20% condition. Predicted particle size distributions (PSD) from the case without secondary air dilution correlate well with scanning mobility particle sizer (SMPS) measurements although fewer and smaller particles are predicted with air dilution. Leaner mixtures and enhanced oxidation, resulting from the interaction with air dilution jets, favor the decrease in soot formation.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-01-01
2024
2024-11-21
2026
2026-12-31
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/212110
url https://riunet.upv.es/handle/10251/212110
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-118387RB-C33 CALCULO DE NUEVOS DESARROLLOS NUMERICOS PARA AHEAD
European Commission https://doi.org/10.13039/501100000780 H2020 952181 Center of Excellence in Combustion
Red Española de Supercomputación RES IM-2023-2-0011
Red Española de Supercomputación RES IM-2023-3-0013
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 TED2021-131618B-C21
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 RYC2021-034654-I
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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