NOx pathways in lean partially premixed swirling H2‐air turbulent flame

T Capurso, D Laera, E Riber, B Cuenot - Combustion and Flame, 2023 - Elsevier
Today's climate and energy challenges are driving the use of decarbonised and renewable
alternative fuels in power generation and transportation. Hydrogen as a fuel is a good …

Numerical characterization of a premixed hydrogen flame under conditions close to flashback

D Mira, O Lehmkuhl, A Both, P Stathopoulos… - Flow, Turbulence and …, 2020 - Springer
This work presents a numerical study of a technically premixed swirling combustor with
central air injection at conditions close to flashback using large-eddy simulation with flamelet …

Interaction mechanisms of fuel momentum with flashback limits in lean-premixed combustion of hydrogen

TG Reichel, CO Paschereit - International Journal of Hydrogen Energy, 2017 - Elsevier
The impact of fuel momentum on the combustor flow field is studied experimentally in a swirl-
stabilized, technically premixed hydrogen flame. The volumetric heating value of hydrogen …

Flashback resistance and fuel–air mixing in lean premixed hydrogen combustion

TG Reichel, S Terhaar, CO Paschereit - Journal of Propulsion and …, 2018 - arc.aiaa.org
To prevent flame flashback in swirl-stabilized, lean premixed combustion, a nonswirling air
jet is introduced on the central axis of the radial swirl generator. This axial injection of air …

Investigation of lean premixed swirl-stabilized hydrogen burner with axial air injection using oh-plif imaging

TG Reichel, K Goeckeler… - … of Engineering for …, 2015 - asmedigitalcollection.asme.org
In the context of lean premixed combustion, the prevention of upstream flame propagation in
the premixing zone, referred to as flashback (FB), is a crucial challenge related to the …

Combustion efficiency measurements and burner characterization in a hydrogen-oxyfuel combustor

T Tanneberger, S Schimek, CO Paschereit… - International Journal of …, 2019 - Elsevier
Energy generation from renewable sources in the power sector keeps constantly increasing.
This raises the demand for fast and flexible large-scale storage technologies. Steam …

Interaction of equivalence ratio fluctuations and flow fluctuations in acoustically forced swirl flames

V Kather, F Lückoff, C O. Paschereit… - … Journal of Spray …, 2021 - journals.sagepub.com
The generation and turbulent transport of temporal equivalence ratio fluctuations in a swirl
combustor are experimentally investigated and compared to a one-dimensional transport …

[HTML][HTML] Identification of coherent structures in distributed swirl-stabilized wet combustion

K Zhang, Y Shen, C Duwig - Fuel, 2021 - Elsevier
Towards achieving sustainable and decarbonized power, biomass to electricity is an
attractive pathway. To that end, the humidified gas turbine cycle is a promising technology …

Numerical investigation of H2/air mixing characteristics in micro-tubes with different geometric configurations

X Ren, Y Feng, C Gu - Physics of Fluids, 2024 - pubs.aip.org
The micro-mixing combustor exhibits the advantages of rapid and uniform mixing of fuel and
air, high safety, and low emissions, showing broad prospects in the utilization of hydrogen …

Numerical investigation of a lean premixed swirl-stabilized hydrogen combustor and operational conditions close to flashback

D Mira, O Lehmkuhl… - … Expo: Power for …, 2018 - asmedigitalcollection.asme.org
The current study presents a numerical investigation of the flow field of a swirl-stabilized
burner featuring a non-swirling axial air jet on the central axis of the mixing tube. The system …