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논문 기본 정보

저자정보
(충북대학교) (충북대학교) (충북대학교)
저널정보
한국연소학회 한국연소학회지 한국연소학회지 제25권 제2호
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피인용 4

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    초록·키워드

    Flame structure and combustion instability characteristics in a swirl-stabilized combustor were investigated by changing fuel, inlet mean velocity, equivalence ratio, and swirler geometry. Two different premixed gases consisting of air and hydrocarbon fuels (C₂H₄, CH₄) were supplied to a combustion chamber through an inlet section and an axial swirler. Dynamic pressure transducer and ICCD camera with a bandpass filter were used to measure pressure fluctuations and flame structures, respectively. The experimental results showed that the pressure fluctuations significantly increased, accompanied by the flame structure transition under certain conditions. Hollow cone flames were mainly formed under stable combustion, but heat release was distributed near the central axis of the combustion chamber under the combustion instability.

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      UCI(KEPA) : I410-ECN-0101-2020-431-000857999