이중선회 연소기에서 연소 불안정 모드 연구

@article{ART002275478},
author={ 장문석 and 이용호 and 강기중 },
title={이중선회 연소기에서 연소 불안정 모드 연구},
journal={한국기계기술학회지},
issn={1229-604X},
year={2017},
volume={19},
number={5},
pages={592-599},
doi={10.17958/ksmt.19.5.201710.592},
url={http://dx.doi.org/10.17958/ksmt.19.5.201710.592}

TY - JOUR
AU - 장문석
AU - 이용호
AU - 강기중
TI - 이중선회 연소기에서 연소 불안정 모드 연구
T2 - 한국기계기술학회지
PY - 2017
VL - 19
IS - 5
PB - 한국기계기술학회
SP - 592-599
SN - 1229-604X
AB - The combustion instability in a dual swirl combustor was investigated experimentally. The effects of thermal power and combustor length on combustion instability were evaluated. Pressure and heat release fluctuation were measured simultaneously. In a conventional combustor, the frequency was decreased with increasing combustorlength and decreasing thermal power. However, it showed different results with a dual swirl combustor. In regime 1 where thermal power was relatively high, the results showed same tendency with a conventional combustor. In regime 2 where thermal power was relatively low, the frequency was almost constant with increasing combustor length. It was found that a beating phenomenon occurred with increased combustor length in regime 2 by measuring sound pressure fluctuation. By confirming that beating phenomenon occurs only in regime 2, it is considered that beating phenomenon is the dominant factor of combustion instability in regime 2. This beating phenomenon inside combustion chamber greatly affected to combustion instability. The reason of the beating phenomenon seemed to be the difference oscillating period between main flame and pilot flame.
KW - 가스터빈 연소기, 이중선회, 연소 불안정, 열-음향 불안정성, 맥놀이 현상
DO - 10.17958/ksmt.19.5.201710.592
UR - http://dx.doi.org/10.17958/ksmt.19.5.201710.592
ER -

장문석 , 이용호 and 강기중 (2017). 이중선회 연소기에서 연소 불안정 모드 연구. 한국기계기술학회지, 19( 5), 592- 599.

장문석 , 이용호 and 강기중 . 2017, “이중선회 연소기에서 연소 불안정 모드 연구”, 한국기계기술학회지, vol. 19, no. 5, pp. 592-599. Available from: doi:10.17958/ksmt.19.5.201710.592

장문석 이용호 et al. 강기중 “이중선회 연소기에서 연소 불안정 모드 연구” 한국기계기술학회지 19.5 pp. 592-599 (2017): 592.

장문석 , 이용호 , 강기중 . 이중선회 연소기에서 연소 불안정 모드 연구 한국기계기술학회지 [Internet]. 2017; 19( 5), : 592-599. Available from: doi:10.17958/ksmt.19.5.201710.592

장문석 , 이용호 and 강기중 . “이중선회 연소기에서 연소 불안정 모드 연구” 한국기계기술학회지 19, no.5 (2017): 592-599. doi: 10.17958/ksmt.19.5.201710.592

홈 권호 목록 논문 목록 논문 상세

이중선회 연소기에서 연소 불안정 모드 연구

한국기계기술학회지

약어 : KSMT

2017, vol.19, no.5, pp.592 - 599

DOI : 10.17958/ksmt.19.5.201710.592

발행기관 : 한국기계기술학회

연구분야 : 기계공학

장문석¹ , 이용호² , 강기중³

¹순천대학교

²순천대학교 기계우주항공공학부

³부산대학교

인용한 논문 수 : - 서지 간략 보기

초록

The combustion instability in a dual swirl combustor was investigated experimentally. The effects of thermal power and combustor length on combustion instability were evaluated. Pressure and heat release fluctuation were measured simultaneously. In a conventional combustor, the frequency was decreased with increasing combustorlength and decreasing thermal power. However, it showed different results with a dual swirl combustor. In regime 1 where thermal power was relatively high, the results showed same tendency with a conventional combustor. In regime 2 where thermal power was relatively low, the frequency was almost constant with increasing combustor length. It was found that a beating phenomenon occurred with increased combustor length in regime 2 by measuring sound pressure fluctuation. By confirming that beating phenomenon occurs only in regime 2, it is considered that beating phenomenon is the dominant factor of combustion instability in regime 2. This beating phenomenon inside combustion chamber greatly affected to combustion instability. The reason of the beating phenomenon seemed to be the difference oscillating period between main flame and pilot flame.

키워드

가스터빈 연소기, 이중선회, 연소 불안정, 열-음향 불안정성, 맥놀이 현상

참고문헌(8)

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