Hydrogen as a fuel additive in laminar ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
Hydrogen as a fuel additive in laminar premixed methane flames: Impact on the nucleation and growth of soot particles
Author(s) :
Do, Hong-Quan [Auteur]
11037|||Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Faccinetto, Alessandro [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Tran, Luc-Sy [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Desgroux, Pascale [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Gasnot, Laurent [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
El Bakali, Abderrahman [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Mercier, Xavier [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
11037|||Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Faccinetto, Alessandro [Auteur]

Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Tran, Luc-Sy [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Desgroux, Pascale [Auteur]

Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Gasnot, Laurent [Auteur]

Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
El Bakali, Abderrahman [Auteur]

Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Mercier, Xavier [Auteur]

Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Journal title :
Fuel
Abbreviated title :
Fuel
Volume number :
315
Pages :
123125
Publisher :
Elsevier BV
Publication date :
2022-05
ISSN :
0016-2361
English keyword(s) :
Soot
Hydrogen
Polycyclic aromatic hydrocarbons (PAHs)
Soot growth
Premixed flame
Hydrogen
Polycyclic aromatic hydrocarbons (PAHs)
Soot growth
Premixed flame
HAL domain(s) :
Sciences de l'ingénieur [physics]
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
English abstract : [en]
This work reports new experimental data regarding the impact of H2 on slightly sooting methane flames (Φ–1.91) characterized by the formation of soot particles undergoing growth processes. This study has been carried out ...
Show more >This work reports new experimental data regarding the impact of H2 on slightly sooting methane flames (Φ–1.91) characterized by the formation of soot particles undergoing growth processes. This study has been carried out in three atmospheric sooting premixed methane flames with added H2 (2% of the total flowrate) or substituted (10% molar comparing to CH4 fuel). The mole fraction profiles of selected aliphatic and aromatic compounds (C1-C16) have been measured by Gas Chromatography and Jet-Cooled Laser-Induced Fluorescence. Concerning the soot particles, we have implemented for the first time an analytical methodology based on in-situ measurements by Laser-induced Incandescence and Cavity Ring-Down Spectroscopy coupled with ex-situ measurements by Scanning Mobility Particle Sizing (SMPS). This original approach allows to determine the soot volume fraction profiles and corresponding evolution of the particle number density and particles size density function without requiring accurate knowledge of the dilution ratio during SMSP measurements. The reported data highlight that the introduction of H2 strongly influences the formation of aromatic species and soot depending on the operating conditions (H2 addition or substitution). The impact of H2 was evaluated on the nucleation step and the soot growth processes. In that context, we notably show that the H2 substitution inhibits while the H2 addition favors the formation of nascent soot particles, and furthermore the H2 addition generates substantial modifications in the dynamic of the soot growth processes. This work also supports the idea that the onset of the particle nucleation might be controlled by specific concentration thresholds of aromatic precursors.Show less >
Show more >This work reports new experimental data regarding the impact of H2 on slightly sooting methane flames (Φ–1.91) characterized by the formation of soot particles undergoing growth processes. This study has been carried out in three atmospheric sooting premixed methane flames with added H2 (2% of the total flowrate) or substituted (10% molar comparing to CH4 fuel). The mole fraction profiles of selected aliphatic and aromatic compounds (C1-C16) have been measured by Gas Chromatography and Jet-Cooled Laser-Induced Fluorescence. Concerning the soot particles, we have implemented for the first time an analytical methodology based on in-situ measurements by Laser-induced Incandescence and Cavity Ring-Down Spectroscopy coupled with ex-situ measurements by Scanning Mobility Particle Sizing (SMPS). This original approach allows to determine the soot volume fraction profiles and corresponding evolution of the particle number density and particles size density function without requiring accurate knowledge of the dilution ratio during SMSP measurements. The reported data highlight that the introduction of H2 strongly influences the formation of aromatic species and soot depending on the operating conditions (H2 addition or substitution). The impact of H2 was evaluated on the nucleation step and the soot growth processes. In that context, we notably show that the H2 substitution inhibits while the H2 addition favors the formation of nascent soot particles, and furthermore the H2 addition generates substantial modifications in the dynamic of the soot growth processes. This work also supports the idea that the onset of the particle nucleation might be controlled by specific concentration thresholds of aromatic precursors.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Comment :
https://hal.archives-ouvertes.fr/hal-03795788
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Research team(s) :
PhysicoChimie de la Combustion (PC2)
Submission date :
2022-10-24T16:39:30Z
2022-10-24T16:46:41Z
2022-10-26T06:38:40Z
2022-10-26T06:47:38Z
2022-10-24T16:46:41Z
2022-10-26T06:38:40Z
2022-10-26T06:47:38Z
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