On the adequacy of chemiluminescence as a measure for heat release in turbulent flames with mixture gradients

M Lauer, T Sattelmayer - 2010 - asmedigitalcollection.asme.org
The determination of the heat release in technical flames is commonly done via bandpass
filtered chemiluminescence measurements in the wavelength range of OH∗ or CH∗ …

[HTML][HTML] The effect of hydrogen addition on the amplitude and harmonic response of azimuthal instabilities in a pressurized annular combustor

T Indlekofer, B Ahn, YH Kwah, S Wiseman… - Combustion and …, 2021 - Elsevier
The present work introduces an annular combustion chamber operated at intermediate
pressures. The combustor is operated with CH 4-H 2 blends leading to a variety of azimuthal …

Investigation of flame and flow response in the swirler with different divergence cups and central body under external excitation

Y Yang, G Wang, H Wu, Z Zhu, C Ma, J Li - Physics of Fluids, 2023 - pubs.aip.org
Effects of swirl divergence cup and the central bluff body on premixed flame response with
external excitation are experimentally investigated. Flame transfer functions (FTFs) …

Determination of the heat release distribution in turbulent flames by a model based correction of OH* chemiluminescence

M Lauer, M Zellhuber, T Sattelmayer, CJ Aul - 2011 - asmedigitalcollection.asme.org
Imaging of OH* or CH* chemiluminescence with intensified cameras is often employed for
the determination of heat release in premixed flames. Proportionality is commonly assumed …

Effect of pressure on the transfer functions of premixed methane and propane swirl flames

F Di Sabatino, TF Guiberti, WR Boyette… - Combustion and …, 2018 - Elsevier
This paper reports on the effect of pressure on the response of methane–air and propane–
air swirl flames to acoustic excitation of the flow. These effects are analyzed on the basis of …

Determination of the heat release distribution in turbulent flames by chemiluminescence imaging

MRW Lauer - 2011 - mediatum.ub.tum.de
Imaging of OH* or CH* is often used for the determination of heat release in turbulent flames.
Proportionality is commonly assumed, but was never proven. The study investigates which …

Study on the operational window of a swirl stabilized syngas burner under atmospheric and high pressure conditions

C Mayer, J Sangl, T Sattelmayer, T Lachaux… - 2012 - asmedigitalcollection.asme.org
Providing better fuel flexibility for future gas turbine generations is a challenge as the fuel
range is expected to become significantly wider (natural gas, syngas, etc.). The technical …

Influence of transversal acoustic excitation of the burner approach flow on the flame structure

M Hauser, M Lorenz, T Sattelmayer - 2011 - asmedigitalcollection.asme.org
Modern large gas turbines for power generation have multiple burners, which are distributed
around the circumference of the engine and which generate flames in combustors of either …

Radiation from high pressure hydrogen-oxygen flames and its use in assessing rocket combustion instability

T Fiala - 2015 - mediatum.ub.tum.de
This study investigates OH* and blue broad-band emission and absorption of non-premixed
hydrogen-oxygen flames at elevated pressure experimentally and numerically in a laminar …

Liquid-fuel behavior in an aeronautical injector submitted to thermoacoustic instabilities

JM Apeloig, FX d'Herbigny, F Simon, P Gajan… - Journal of Propulsion …, 2015 - arc.aiaa.org
The aim of this work is to study the role of the liquid phase in the thermoacoustic coupling,
which subsequently leads to combustion instabilities. Experimental investigations were …