Results 101 to 110 of about 108,068 (160)

Physically Interpretable AI-Driven Prediction of Instability Regimes in Hydrogen-Enriched Premixed Combustion

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
Hydrogen-enriched combustion is central to decarbonizing high-efficiency energy systems, yet its practical adoption is limited by the onset of thermoacoustic and hydrodynamic instabilities in premixed flames.
Ali Can Yılmaz
doaj   +1 more source

Numerical prediction of thermoacoustic instabilities in a three-dimensional combustor model

open access: yes, 2019
In this paper, the numerical work focus on prediction of the thermoacoustic instabilities for a three-dimensional combustor model. A numerical methodology solving the Helmholtz equation with the Flame Describing Function (FDF) in frequency domain is used.
Na, Wei,, Boij, Susann,
core   +1 more source

Subharmonic and Non-Subharmonic Pulsed Control of Thermoacoustic Instabilities: Analysis and Experiment

open access: yes, 2002
Thermoacoustic instabilities are a problem in modern pre-mixed combustors causing reduced performance and leading in the extreme to combustor failure from excessive pressure cycles.
Carson, J. Matthew
core  

Universality in spectral condensation. [PDF]

open access: yesSci Rep, 2020
Pavithran I   +8 more
europepmc   +1 more source

On the use of sound absorption to suppress thermoacoustic instabilities under combustion chamber conditions

open access: yes, 2019
The replacement of the Helmholtz resonators currently used for damping thermoacoustic instabilities in stationary gas turbines by ceramic pore absorbers could improve both the efficiency of combustion and the operating range of the gas turbines.
Ries, Hans-Christoph
core  

Experimental Study of a Standing-Wave Transcritical Thermoacoustic Device

open access: yes, 2018
A prototype transcritical thermoacoustic engine has been constructed and tested, yielding thermoacoustic results. Three different thermoacoustic “stack” designs have been evaluated in the present study.
Alexander, Dayle
core   +1 more source

Development and Characterization of Porous Ceramic Absorbers for Damping of Thermoacoustic Instabilities

open access: yes, 2011
This work presents a new approach for the damping of thermoacoustic instabilities. The use of porous ceramics with high sound absorbent capabilities as lining in combustion chambers was studied in order to suppress self induced combustion instabilities ...
Giese, Frank
core  

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