Title :

Effect of hydrogen addition on NOx formation in high-pressure counter-flow premixed CH4/air flames

Author(s) :

de Persis, Stéphanie [Auteur]
Université d'Orléans [UO]
Institut de Combustion, Aérothermique, Réactivité et Environnement [ICARE]
Idir, Mahmoud [Auteur]
Institut de Combustion, Aérothermique, Réactivité et Environnement [ICARE]
Molet, Julien [Auteur]
Université d'Orléans [UO]
Institut de Combustion, Aérothermique, Réactivité et Environnement [ICARE]
Pillier, Laure [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]

Journal title :

International Journal of Hydrogen Energy

Abbreviated title :

International Journal of Hydrogen Energy

Volume number :

44

Pages :

23484-23502

Publisher :

Elsevier BV

Publication date :

2019-08-30

ISSN :

0360-3199

English keyword(s) :

Hydrogen
NOx formation
High pressure flames
Kinetic analysis

HAL domain(s) :

Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Physique [physics]/Physique [physics]
Chimie/Chimie théorique et/ou physique

English abstract : [en]

A laboratory-scale laminar counterflow burner was used to investigate NO formation in high pressure premixed CH4/H2/air flames. New experimental results on NO measurements by LIF were obtained at high pressure in CH4/H2/air ...
Show more >A laboratory-scale laminar counterflow burner was used to investigate NO formation in high pressure premixed CH4/H2/air flames. New experimental results on NO measurements by LIF were obtained at high pressure in CH4/H2/air flames with H2 content fixed at 20% in the fuel at pressures ranging from 0.1 to 0.7 MPa and an equivalence ratio progressively decreased from 0.74 to 0.6. The effects of hydrogen addition, equivalence ratio and pressure are discussed. These results are satisfactorily compared to the simulations using two detailed mechanisms: GDFkin®3.0_NOmecha2.0 and the mechanism from Klippenstein et al., which are the most recent high-pressure NOx formation mechanisms available in the literature. A kinetic analysis based on Rate of Production/Rate of Consumption and sensitivity analyses of NO is then presented to identify the main pathways that lead to the formation and consumption of NO. In addition, the effect of hydrogen addition on NO formation pathways is described and analysed.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522

Research team(s) :

PhysicoChimie de l'Atmosphère (PCA)

Submission date :

2019-11-25T10:42:58Z
2019-11-25T14:56:31Z
2020-11-19T08:47:54Z