대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제34권2호
  • /
  • Pages.197-202
  • /
  • 2010
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

예혼합 분젠 화염에서의 화염 표면적 변동이 열발생 변동에 미치는 영향에 관한 실험적 연구

Experimental Study on the Effect of Flame Surface Area Fluctuation on the Heat Release Fluctuation in a Premixed Bunsen Flame

  • 박장희 (한국과학기술원 기계공학과) ;
  • 이대근 (한국에너지기술연구원) ;
  • 신현동 (한국과학기술원 기계공학과)
  • Park, Jang-Hee (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Lee, Dae-Keun (Korea Institute of Energy Research) ;
  • Shin, Hyun-Dong (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • 발행 : 2010.02.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

자발 진동하는 층류 예혼합 분젠 화염을 관찰하기 위하여 분기관을 가진 연소기를 제작 하였다. 특히, 조건에 따른 화염 거동을 살펴봤으며, 화염 표면적과 열발생 변동의 관계에 대하여 고찰하였다. 본 연구에서 사용된 당량비는 1.1 이고, 노즐 출구 평균 유속은 1.75 m/sec 이다. 연소 챔버와 분기관의 길이비(L.R.)는 연소기 내 압력 변동에 영향을 미치며, 결과적으로 화염 거동 특성이 달라짐을 관찰하였다. 또한, 간섭 필터의 유무에 따른 $OH^*$, $CH^*$, 그리고 화염 자발광은 정성적으로 유사한 거동을 나타냈으며, 자발 진동하는 층류 예혼합 분젠 화염의 화염 표면적 변동과 열발생 변동은 선형적인 관계를 가짐을 확인하였다.

A combustion chamber with a branch tube was built to investigate the characteristics of a spontaneous oscillating laminar premixed Bunsen flame. The flame behavior was observed, and the relation between the flame surface area and heat release rate was inspected. The equivalence ratio and mean velocity were fixed at 1.1 and 1.75 m/s, respectively. The amplitude of the pressure fluctuation in the combustion chamber was changed and the flame behavior was affected when the length ratio between the branch tube and combustion chamber (L:R) was varied. The $OH^*$, $CH^*$, and flame chemiluminescence had similar behavior qualitatively. There was linearity between the flame surface area and heat release rate.

키워드

참고문헌

  1. Lee, J. G., Kim, K. W. and Santavicca, D. A., 2000, "Effect of Injection Location on the Effectiveness of an Active Control System Using Secondary Fuel Injection," Proceedings of the Combustion Institute, Vol. 28, pp. 739-746. https://doi.org/10.1016/S0082-0784(00)80276-3
  2. Docquier, N., Belhalfaoui, S., Lacas, F., Darabiha, N. and Rolon, C., 2000, "Experimental and Numerical Study of Chemiluminescence in Methane/Air High-Pressure Flames for Active Control Applications", Proceedings of the Combustion Institute, Vol. 28, pp. 1765-1774. https://doi.org/10.1016/S0082-0784(00)80578-0
  3. Schuller, T., Durox, D., and Candel, S., 2002, "Dynamics of and Noise Radiated by a Perturbed Impinging Premixed Jet Flame," Combustion and Flame, Vol. 128, pp. 88-110. https://doi.org/10.1016/S0010-2180(01)00334-0
  4. Haber, L., Vandsberger, U., Saunders, W. and Khanna, V., 2000, "An Examination of the Relationship Between Chemiluminescence Light Emissions and Heat Release Rate Under Non-Adiabatic Conditions", ASME paper 2000-GT-0121.
  5. Jeong, Y. K., Oh, J. S., Jeon, C, H. and Chang, Y. J., 2005, "Detailed Local Chemiluminescence Measurement (OH*, CH* and $C_2$*) and Nitrogen Oxides Emissions in Laminar Partially Premixed CH4/Air Flames," Trans. of the KSME(B), Vol. 29, No. 2, pp. 263-270. https://doi.org/10.3795/KSME-B.2005.29.2.263
  6. Stewart, G. W., 1926, "The Tube as a Branch of an acoustic conduit : The Special case of The Quincke Tube," Physical Review, Vol. 27, pp. 494-498. https://doi.org/10.1103/PhysRev.27.494
  7. Stewart, G. W., 1928, "The Theory of the Herschel-Quincke Tube," Physical Review, Vol. 31, pp. 696-698. https://doi.org/10.1103/PhysRev.31.696
  8. Carvalho, J. A., Ferreira, M. A., Bressan, C and Ferreira, J. L. G., 1989, "Definition of Heater Location to Drive Maximum Amplitude Acoustic Oscillation in a Rijke Tube," Combustion and Flame, Vol. 76, pp. 17-27. https://doi.org/10.1016/0010-2180(89)90073-4
  9. Hong, J. G., Oh, K. C. and Shin, H. D., 2007, "An Effect of Pressure Fluctuations of Combustion Chamber on the Modulation of Equivalence Ratio in the Channel of the Burner," Trans. of the KSME (B), Vol. 31, No. 2, pp. 202-207. https://doi.org/10.3795/KSME-B.2007.31.2.202