Investigation on the impact of hydrogen addition in a bluff body stabilized turbulent flame using high repetition OH PLIF-PIV and multiscalar measurements by spontaneous Raman scattering - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Investigation on the impact of hydrogen addition in a bluff body stabilized turbulent flame using high repetition OH PLIF-PIV and multiscalar measurements by spontaneous Raman scattering

Kuppuraj Rajamanickam
Franck Lefebvre
Carole Gobin
G. Godard
Corine Lacour
Bertrand Lecordier
Armelle Cessou

Résumé

We experimentally investigated the effect of hydrogen (H2) addition over the turbulence chemistry interactions in the lab-scale canonical non-premixed bluff-body burner. It is well known that, the non-premixed bluff-body burner possesses complex interactions between the central fuel jet, toroidal air recirculation vortex and extinction/re-ignition events. The objective of the present study is to follow up and provide further quantitative insights into the above-said processes as a function of hydrogen addition from methane turbulent flame up to full hydrogen one. This is accomplished through high–repetitive (5 kHz) simultaneous OH PLIF and PIV measurements. Results show the change in turbulent flame/flow interactions leading flame stabilization. In addition, combined OH* chemiluminescence and 1D spontaneous Raman scattering have been implemented over some selected hydrogenated flames to determine instantaneous and simultaneous temperature and various species concentrations: CH4, H2 O2, N2, CO , CO2 and H2O. The obtained measurements highlighted the significant influence of H2 addition in the local extinction, re-ignition events and thus joint pdfs of species and temperature profiles.
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Dates et versions

hal-03874234 , version 1 (27-11-2022)

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  • HAL Id : hal-03874234 , version 1

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Kuppuraj Rajamanickam, Franck Lefebvre, Carole Gobin, G. Godard, David Honoré, et al.. Investigation on the impact of hydrogen addition in a bluff body stabilized turbulent flame using high repetition OH PLIF-PIV and multiscalar measurements by spontaneous Raman scattering. Low Carbon Combustion days - Joint meeting of the French and British sections of the Combustion Institute, Apr 2022, Cambridge (UK), United Kingdom. ⟨hal-03874234⟩
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