The thermoacoustic instability in a stratified swirl burner and its passive control by using a slope confinement

Heng Song, Yuzhen Lin, Xiao Han, Dong Yang, Chi Zhang and Chih-Jen Sung

Energy, 2020, vol. 195, issue C

Abstract: •Mechanisms of thermoacoustic oscillations in the dump confinement are elucidated.•A passive control method is proposed by using the slope confinement.•This method suppresses the flame front wrinkling and flame root angle fluctuation.•The slope confinement reduces the gain of the flame transfer function.•This reduction of the gain enhances the system thermoacoustic stability.

Keywords: Thermoacoustic instability; Flame dynamics; Stratified flame; Passive control; Confinement (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:195:y:2020:i:c:s0360544220300633

DOI: 10.1016/j.energy.2020.116956

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