Experimental study of the beating behavior of thermoacoustic self-excited instabilities in dual swirl combustors

J Kim, M Jang, K Lee, AR Masri - Experimental Thermal and Fluid Science, 2019 - Elsevier
The main objective of this work was to investigate the beating behavior of acoustically self-
excited instabilities in dual swirl combustors. This was achieved by measuring fluctuations in …

Investigation on the intrinsic thermoacoustic instability of a lean-premixed swirl combustor with an acoustic liner

L Xu, J Zheng, G Wang, Z Feng, X Tian, L Li… - Proceedings of the …, 2021 - Elsevier
In the present work, the combustion instability of a premixed swirl combustor was
experimentally and theoretically investigated. Results show that both intrinsic …

Combustion instability analysis on a partially premixed swirl combustor by thermoacoustic experiments and modeling

R Zhu, D Pan, C Ji, T Zhu, P Lu, H Gao - Energy, 2020 - Elsevier
The combustion instability of a partially premixed swirl burner is investigated by
experimental tests and numerical modeling. The experimental results show that the …

Experimental study of equivalence ratio and fuel flow rate effects on nonlinear thermoacoustic instability in a swirl combustor

H Zhao, G Li, D Zhao, Z Zhang, D Sun, W Yang, S Li… - Applied Energy, 2017 - Elsevier
Industrial combustion systems such as power generation gas turbines, rocket motors,
furnaces and boilers often face the problem of large-amplitude self-excited pressure …

Nonlinear dynamic characteristics of self-excited thermoacoustic instabilities in premixed swirling flames

L Ji, J Wang, W Zhang, D Li, G Hu, Z Huang - Experimental Thermal and …, 2024 - Elsevier
The nonlinear behavior of thermoacoustic oscillation for premixed swirl flames fueled with
CH 4/air mixtures is experimentally studied by changing the equivalence ratio Φ, combustor …

Effects of the fresh mixture temperature on thermoacoustic instabilities in a lean premixed swirl-stabilized combustor

B Zhang, M Shahsavari, Z Rao, R Li, S Yang… - Physics of …, 2020 - pubs.aip.org
This numerical study investigated the effects of the fresh mixture temperature on
thermoacoustic instabilities in a lean premixed swirl-stabilized combustion chamber by …

Investigation of self-induced thermoacoustic instabilities in gas turbine combustors

SS Rashwan, A Mohany, I Dincer - Energy, 2020 - Elsevier
The self-induced thermoacoustic instabilities in partially premixed combustors remain a
significant challenge which has received a limited research attention. This numerical work …

[HTML][HTML] Effects of swirler position on flame response and combustion instabilities

XU Liangliang, J Zheng, W Guoqing, LI Lei… - Chinese Journal of …, 2022 - Elsevier
This study is concerned with the experimental and theoretical investigation of the
combustion instabilities in a premixed swirl combustor. It is focused on the effects of the swirl …

System identification and impulse response of a methane-fuelled swirling thermoacoustic combustor

D Zhao - Thermal Science and Engineering Progress, 2023 - Elsevier
Self-excited combustion instabilities are characterized by large-amplitude limit cycle
oscillations of thermodynamic properties such as pressure, velocity and heat release. In …

Experimental study of the effect of outlet boundary on combustion instabilities in premixed swirling flames

Y Yang, G Wang, Y Fang, T Jin, J Li - Physics of Fluids, 2021 - pubs.aip.org
Combustion instability is one significant issue in the development of aero-engines and gas
turbines. In practical combustors, the exit boundary of the combustion chamber is complex …