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A Review on Combustion Instability of Hydrogen-Enriched Marine Gas Turbines

Journal of Marine Science and Engineering
Hydrogen is widely regarded as a promising carbon-free alternative fuel. However, the development of low-emission marine gas turbine combustion systems has been hindered by the associated risks of combustion instability, also termed as thermoacoustic ...
Jiaying Cheng, Bin Hu, Zhilin Zeng, Jinhai Fu, Boyang Zhang   +4 more
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The Effects of Non-uniform Distribution of Oxidizer Flow on High-Frequency Combustion Instability

MATEC Web of Conferences, 2019
The numerical calculation of three-dimensional unsteady combustion for the combustion chamber of LOX/kerosene high pressure staged combustion rocket engine was carried out.
Chen Peng, Nie Wansheng, Guo Kangkang, Sun Xing, Liu Yu, Wang Haiqing   +5 more
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Investigation of temporal variation of combustion instability intensity in a back step combustor using LES

Journal of Thermal Science and Technology, 2020
Lean combustion is susceptible to combustion instabilities, especially pressure oscillation, and this severely damages the combustor. To prevent this, many studies have attempted to elucidate this phenomenon.
Jun NAGAO, Abhishek L. PILLAI, Ryoichi KUROSE   +2 more
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Preliminary Hot-Fire Test of Ammonium Dinitramide-Based Thrusters Based on Electrical Ignition

Space: Science & Technology
Space sustainability and green space activities are advanced space propulsion concepts developed in the 21st century. Ammonium dinitramide (ADN)-based liquid space thrusters are typical representatives of high-performance green propulsion.
Jin-Ze Wu, Guo-Xiu Li, Hong-Meng Li, Shuo Zhang, Zhao-Pu Yao, Tao Zhang   +5 more
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Combustion instability sustained by unsteady vortex combustion [PDF]

21st Joint Propulsion Conference, 1985
The determination of an internal feedback mechanism which leads to combustion instability inside a small scale laboratory combustor is presented in this paper. During combustion instability, the experimental findings show that a large vortical structure is formed at an acoustic resonant mode of the system.
openaire   +1 more source

Analytical Equations for Thermoacoustic Instability Sources and Acoustic Radiation from Reacting Turbulence

International Journal of Aerospace Engineering, 2020
We seek to ascertain and understand source terms that drive thermoacoustic instability and acoustic radiation. We present a new theory based on the decomposition of the Navier-Stokes equations coupled with the mass fraction equations.
S. A. E. Miller
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Combustion Instability and Ash Agglomeration in Wood Pellets Boiler

Energies, 2023
The combustion instability and ash agglomeration in a wood pellet boiler were investigated in this study. The tests were conducted using the Taguchi method of orthogonal array L27(133).
Lelis Fraga, Eduardo Ferreira, Pedro Ribeiro, Carlos Castro, Jorge Martins, José C. Teixeira   +5 more
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Three-Dimensional Numerical Analysis of Longitudinal Thermoacoustic Instability in a Single-Element Rocket Combustor

Frontiers in Energy Research, 2022
This study numerically investigated the thermoacoustic combustion instability characteristics of a scaled rocket combustor based on a hybrid of the Reynolds-averaged Navier–Stokes and large–eddy simulation method.
Guo Kangkang, Xu Boqi, Ren Yongjie, Tong Yiheng, Nie Wansheng   +4 more
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Bases of Combustion Instability

, 2021
Combustible systems generally consist of two types of chemically interacting components during combustion: an oxidizing agent (oxygen, fluorine, chlorine, their compounds) and fuel (hydrogen, hydrocarbons, nitrogen and hydrogen compounds, aluminum, etc.).
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Detection of Precursors of Thermoacoustic Instability in a Swirled Combustor Using Chaotic Analysis and Deep Learning Models

Aerospace
This paper investigates the role of chaotic analysis and deep learning models in combustion instability predictions. To detect the precursors of impending thermoacoustic instability (TAI) in a swirled combustor with various fuel injection strategies, a ...
Boqi Xu, Zhiyu Wang, Hongwu Zhou, Wei Cao, Zhan Zhong, Weidong Huang, Wansheng Nie   +6 more
doaj   +1 more source