Results 91 to 100 of about 2,929 (210)

UV and Visible Radiation Characteristics of Thermoacoustic Instabilities in an Ammonia–Methane Premixed Swirl-Stabilized Combustor

Energies
Ammonia (NH3) is a promising carbon-free energy carrier for low-carbon power generation. However, in turbulent ammonia–methane (NH3-CH4) premixed swirling flames, operating at lean conditions to limit NOX, emissions can trigger strong thermoacoustic ...
Junhui Ma, Xianglan Fu, Dongqi Chen, Le Chang, Lingxue Wang, Yingchen Shi, Haocheng Wen, Bing Wang   +7 more
doaj   +1 more source

Boundaries of thermoacoustic instability in the thermoacoustic engine with cryogenic cooling [PDF]

Journal International Academy of Refrigeration, 2020
E.A. Zinoviev, G.V. Vorotnikov, A.I. Dovgyallo, S.O. Nekrasova   +3 more
openaire   +1 more source

Learning and Characterizing Chaotic Attractors of a Lean Premixed Combustor

Energies
This paper is about the characteristics of and a method to recognize the onset of limit cycle thermoacoustic oscillations in a gas turbine-like combustor with a premixed turbulent methane/air flame.
Sara Navarro-Arredondo, Jim B. W. Kok
doaj   +1 more source

Investigation of High-Frequency Thermoacoustic Instabilities

, 2021
Dissertation, Universität Duisburg-Essen ...
openaire   +3 more sources

Monitoring thermoacoustic instability: A comparative analysis of feature-based and end-to-end deep learning approaches

Applications in Energy and Combustion Science
This paper compares two data-driven frameworks for monitoring thermoacoustic instability (TAI) in a gas turbine combustor. A conventional machine learning approach using handcrafted features is contrasted with an end-to-end deep learning method employing
Jikang Wang, Yichen Wang, Yupeng Qin, Xuan Lv   +3 more
doaj   +1 more source

A novel diagnostic method based on filter bank theory for fast and accurate detection of thermoacoustic instability. [PDF]

Sci Rep, 2021
Joo S, Choi J, Kim N, Lee MC.
europepmc   +1 more source

High-fidelity simulation of an ultrasonic standing-wave thermoacoustic engine with bulk viscosity effects

, 2017
We have carried out boundary-layer-resolved, unstructured fully-compressible Navier--Stokes simulations of an ultrasonic standing-wave thermoacoustic engine (TAE) model.
Bhatia A. B., Flitcroft M., Ham F., Pierce A. D., Swift G. W.   +4 more
core   +1 more source

The Effects of Parameter Settings on Triggering Time and Climb Rate during Lean-Premixed Combustion Thermoacoustic Oscillations

Applied Sciences
This study theoretically explored the effects of parameter settings on thermoacoustic oscillations with a low-order model. Three factors were explored—combustor length, inlet gas temperature and thermal power.
Chengfei Tao, Rongyue Sun, Yichen Wang, Liang Zhang, Jiangming Ye, Shaohua Liang   +5 more
doaj   +1 more source

A mathematical model and inversion procedure for Magneto-Acousto-Electric Tomography (MAET)

, 2011
Magneto-Acousto-Electric Tomography (MAET), also known as the Lorentz force or Hall effect tomography, is a novel hybrid modality designed to be a high-resolution alternative to the unstable Electrical Impedance Tomography.
Agranovsky M, Ambartsoumian G Patch S Oraevsky A A Wang L V, Barber D C, Borcea L, Colton D, Gilbarg D, Haider S, Hristova Y, Kuchment P, Kunyansky L, Kunyansky L, Kunyansky L, Kunyansky L, Kunyansky L Kuchment P, Leonid Kunyansky, Oraevsky A A, Stewart A M, Vladimirov V S   +17 more
core   +1 more source

Analytical modeling of thermoacoustic instability influences in gas turbine combustors: A detailed parameter sensitivity analysis

Case Studies in Thermal Engineering
In this study, the effects of various system parameters on combustion instability were numerically identified through a network-based thermoacoustic model using the concept of a transfer function.
Seonyeong Kim, Daesik Kim
doaj   +1 more source