On the impact of H2-enrichment on flame structure and combustion dynamics of a lean partially-premixed turbulent swirling flame

PW Agostinelli, D Laera, I Chterev, I Boxx… - Combustion and …, 2022 - Elsevier
Abstract Large Eddy Simulation (LES) with Conjugate Heat Transfer (CHT) is used to
analyze the impact of H 2-enrichment on the flame structure and combustion dynamics of a …

Stabilization mechanisms of CH4 premixed swirled flame enriched with a non-premixed hydrogen injection

D Laera, PW Agostinelli, L Selle, Q Cazères… - Proceedings of the …, 2021 - Elsevier
Abstract High-fidelity Large Eddy Simulations (LES) are performed to study the effect of
hydrogen injection on a lean turbulent CH 4/Air premixed flame. An Analytically Reduced …

Large eddy simulations of mean pressure and H2 addition effects on the stabilization and dynamics of a partially-premixed swirled-stabilized methane flame

PW Agostinelli, D Laera, I Chterev, I Boxx… - Combustion and …, 2023 - Elsevier
This work analyzes pressure and hydrogen enrichment effects on the stabilization and
combustion dynamics of a partially-premixed swirled-stabilized methane flame operated at …

Effects of bluff-body on the thermal performance of micro thermophotovoltaic system based on porous media combustion

P Qian, M Liu, X Li, F Xie, Z Huang, C Luo… - Applied Thermal …, 2020 - Elsevier
To improve thermophotovoltaic system efficiency, a porous media combustor with a bluff-
body as the flame holder was proposed. A two-dimensional numerical simulation of …

[HTML][HTML] The Influence of Gas Fuel Enrichment with Hydrogen on the Combustion Characteristics of Combustors: A Review

RM Ghazal, A Akroot, HA Abdul Wahhab, AEJ Alhamd… - Sustainability, 2024 - mdpi.com
Hydrogen is a promising fuel because it has good capabilities to operate gas turbines. Due
to its ignition speed, which exceeds the ignition of traditional fuel, it achieves a higher …

Experimental and numerical study of h2 enrichment on swirl/bluff-body stabilized lean premixed n-butane/air flame

V Raj, C Prathap - International Journal of Hydrogen Energy, 2024 - Elsevier
This study focused on the stabilization of lean premixed flames of n-butane/H 2/air with
swirl/bluff-body. The research explored four different hydrogen fractions (0, 20%, 40%, and …

Influence of slit asymmetry on blow-off and flashback in methane/hydrogen laminar premixed burners

H Pers, PA Masset, E Flores-Montoya, L Selle… - Combustion and …, 2024 - Elsevier
One way to decarbonize the heat production sector is to gradually replace natural gas with
hydrogen. The design of laminar premixed burners capable of operating with both methane …

Assessing the importance of differential diffusion in stratified hydrogen–methane flames using extended flamelet tabulation approaches

H Nicolai, L Dressler, J Janicka, C Hasse - Physics of Fluids, 2022 - pubs.aip.org
Taking into account detailed chemical kinetics and therefore allowing for a detailed
representation of the flame's microstructure at reduced computational cost make flamelet …

[HTML][HTML] A mesh-free framework for high-order direct numerical simulations of combustion in complex geometries

JRC King - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
The multiscale nature of turbulent combustion necessitates accurate and computationally
efficient methods for direct numerical simulations (DNS). The field has long been dominated …

Global hydrodynamic instability and blowoff dynamics of a bluff-body stabilized lean-premixed flame

M Balasubramaniyan, A Kushwaha, Y Guan, J Feng… - Physics of …, 2021 - pubs.aip.org
We experimentally study the hydrodynamic instability of a lean-premixed flame stabilized
behind a circular cylinder. On reducing the equivalence ratio (⁠ ϕ⁠) at a fixed Reynolds …