Mitigating the response of premixed swirl flames to acoustic excitation by nanosecond repetitively pulsed discharges at elevated pressures

Liang Yu; B. Aravind; Deanna A. Lacoste

doi:10.1016/j.combustflame.2023.112944

Mitigating the response of premixed swirl flames to acoustic excitation by nanosecond repetitively pulsed discharges at elevated pressures

Liang Yu, B. Aravind^*, Deanna A. Lacoste

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This paper shows that nanosecond repetitively pulsed discharges were able to mitigate the response of lean methane-air swirl flames to acoustic excitations, at pressures up to 3 bar. Flame transfer functions with and without plasma discharges were investigated at pressures of 1.2, 2.0, and 3.0 bar, in a frequency range 48–380 Hz. Results show that the plasma discharges decreased by up to 50% the gain of the flame transfer functions, regardless of the pressure. Mechanisms responsible for this effect are discussed.

Original language	English (US)
Article number	112944
Journal	Combustion and Flame
Volume	256
DOIs	https://doi.org/10.1016/j.combustflame.2023.112944
State	Published - Oct 2023

Bibliographical note

Funding Information:
This research was funded by the King Abdullah University of Science and Technology , through the baseline fund BAS/1/1396–01–01 .

Publisher Copyright:
© 2023 The Combustion Institute

Keywords

Combustion control
Flame transfer function
Plasma assisted combustion
Thermoacoustic instability

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

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10.1016/j.combustflame.2023.112944

Cite this

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title = "Mitigating the response of premixed swirl flames to acoustic excitation by nanosecond repetitively pulsed discharges at elevated pressures",

abstract = "This paper shows that nanosecond repetitively pulsed discharges were able to mitigate the response of lean methane-air swirl flames to acoustic excitations, at pressures up to 3 bar. Flame transfer functions with and without plasma discharges were investigated at pressures of 1.2, 2.0, and 3.0 bar, in a frequency range 48–380 Hz. Results show that the plasma discharges decreased by up to 50% the gain of the flame transfer functions, regardless of the pressure. Mechanisms responsible for this effect are discussed.",

keywords = "Combustion control, Flame transfer function, Plasma assisted combustion, Thermoacoustic instability",

author = "Liang Yu and B. Aravind and Lacoste, {Deanna A.}",

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AU - Yu, Liang

AU - Aravind, B.

AU - Lacoste, Deanna A.

N1 - Funding Information: This research was funded by the King Abdullah University of Science and Technology , through the baseline fund BAS/1/1396–01–01 . Publisher Copyright: © 2023 The Combustion Institute

PY - 2023/10

Y1 - 2023/10

N2 - This paper shows that nanosecond repetitively pulsed discharges were able to mitigate the response of lean methane-air swirl flames to acoustic excitations, at pressures up to 3 bar. Flame transfer functions with and without plasma discharges were investigated at pressures of 1.2, 2.0, and 3.0 bar, in a frequency range 48–380 Hz. Results show that the plasma discharges decreased by up to 50% the gain of the flame transfer functions, regardless of the pressure. Mechanisms responsible for this effect are discussed.

AB - This paper shows that nanosecond repetitively pulsed discharges were able to mitigate the response of lean methane-air swirl flames to acoustic excitations, at pressures up to 3 bar. Flame transfer functions with and without plasma discharges were investigated at pressures of 1.2, 2.0, and 3.0 bar, in a frequency range 48–380 Hz. Results show that the plasma discharges decreased by up to 50% the gain of the flame transfer functions, regardless of the pressure. Mechanisms responsible for this effect are discussed.

KW - Combustion control

KW - Flame transfer function

KW - Plasma assisted combustion

KW - Thermoacoustic instability

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DO - 10.1016/j.combustflame.2023.112944

M3 - Article

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SN - 0010-2180

VL - 256

JO - Combustion and Flame

JF - Combustion and Flame

M1 - 112944

ER -

Mitigating the response of premixed swirl flames to acoustic excitation by nanosecond repetitively pulsed discharges at elevated pressures

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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