Scaling and prediction of transfer functions in lean premixed H2/CH4-flames

E Æsøy, JG Aguilar, S Wiseman, MR Bothien… - Combustion and …, 2020 - Elsevier
Features of the flame transfer function (FTF) are characterized for turbulent, non-swirled,
bluff body stabilized “M” flames for different hydrogen and methane blends including pure …

[HTML][HTML] The effect of hydrogen enrichment, flame-flame interaction, confinement, and asymmetry on the acoustic response of a model can combustor

E Æsøy, T Indlekofer, F Gant, A Cuquel… - Combustion and …, 2022 - Elsevier
To maximise power density practical gas turbine combustion systems have several injectors
which can lead to complex interactions between flames. However, our knowledge about the …

Thermoacoustic instability and flame transfer function in a lean direct injection model gas turbine combustor

S Joo, S Kwak, J Lee, Y Yoon - Aerospace Science and Technology, 2021 - Elsevier
This paper discusses the combustion dynamic characteristics of hydrogen/methane flames
and the flame response to fuel flow fluctuation in a model lean-direct injection gas turbine …

The effect of fuel staging on the structure and instability characteristics of swirl-stabilized flames in a lean premixed multinozzle can combustor

J Samarasinghe, W Culler… - … for Gas Turbines …, 2017 - asmedigitalcollection.asme.org
Fuel staging is a commonly used strategy in the operation of gas turbine engines. In
multinozzle combustor configurations, this is achieved by varying fuel flow rate to different …

Characterization of nonlinear responses of non-premixed flames to low-frequency acoustic excitations

D Pan, C Ji, T Zhu - Applied Sciences, 2023 - mdpi.com
Featured Application Stable design of Combustor in industrial boiler and burner. Abstract
The response of flames' heat release to acoustic excitation is a critical factor for …

Effects of hydrogen addition on the forced response of H2/CH4 flames in a dual-nozzle swirl-stabilized combustor

S Kwak, J Choi, M Ahn, Y Yoon - International Journal of Hydrogen Energy, 2022 - Elsevier
The effects of hydrogen addition on the forced response of H 2/CH 4 flames are analyzed in
a dual-nozzle swirl-stabilized combustor. The hydrogen volumetric content in the fuel is …

The effect of confinement on the structure and dynamic response of lean-premixed, swirl-stabilized flames

AJ De Rosa, SJ Peluso… - … of Engineering for …, 2016 - asmedigitalcollection.asme.org
The effect of flame–wall interactions on the forced response of a lean-premixed, swirl-
stabilized flame is experimentally investigated by examining flames in a series of three …

Generalization of turbulent swirl flame transfer functions in gas turbine combustors

KT Kim, DA Santavicca - Combustion science and technology, 2013 - Taylor & Francis
Experimental investigations of the forced response of swirl-stabilized turbulent flames to
upstream flow disturbances were performed in an industrial scale gas turbine combustor …

Hydrogen enhancement on a mesoscale swirl stabilized burner array

J Choi, R Rajasegar, W Lee, T Lee, J Yoo - International Journal of …, 2021 - Elsevier
This manuscript presents a study of hydrogen-enhanced methane flames in a compact
mesoscale burner array, where even a minute addition of hydrogen can significantly …

The three-dimensional structure of swirl-stabilized flames in a lean premixed multinozzle can combustor

J Samarasinghe, SJ Peluso… - … for Gas Turbines …, 2016 - asmedigitalcollection.asme.org
Flame structure can have a significant effect on a combustor's static stability (resistance to
blowoff) and dynamic stability (combustion instability) and therefore is an important aspect of …