JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Characteristics of Interacting Lifted Flames
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Characteristics of Interacting Lifted Flames
Lee, Seung; Lee, Byeong-Jun;
  PDF(new window)
 Abstract
The characteristics of nonpremixed interacting flames are investigated in the parameter of nozzle configuration and nozzle separation distane, s. Three nozzle arrangements - diamond 4 nozzle, linear 5 nozzle and cross 5 nozzle- are used. When s is about 10 nozzle diameter, flames lift from the nozzle at the highest fuel flowrate compared with the other s cases. Normally flames are extinguished at the lifted states. Flowrates when blowout occurs are affected by the nozzle configuration, nozzle seperation distance. Blowout flowrates for the diamond- or cross-shaped nozzle cases are parabolic function of s. For 5 cross nozzle case, flames extinguished at 3.3 times higher flowrate than that of single equivalent area nozzle. Turbulent liftoff heights are not function of flowrates for these cases.
 Keywords
Lifted Flame;Interaction;Flame Stability;Blowout;Flame Height;Liftoff Height;
 Language
Korean
 Cited by
1.
다수 비예혼합 화염의 안정화 특성,김진선;이병준;

대한기계학회논문집B, 2003. vol.27. 10, pp.1420-1426 crossref(new window)
2.
동축 확산 부상화염의 Blow-off와 연소 특성,곽지현;전충환;장영준;

대한기계학회논문집B, 2003. vol.27. 8, pp.1089-1096 crossref(new window)
3.
메탄 비예혼합 상호작용 화염의 특성,김진현;이병준;

대한기계학회논문집B, 2005. vol.29. 3, pp.349-355 crossref(new window)
4.
다수 상호작용 화염의 공해배출물 특성,김진현;이병준;

대한기계학회논문집B, 2005. vol.29. 6, pp.730-736 crossref(new window)
5.
화염의 상호작용에 의한 부분 예혼합화염의 화염날림 유속 확대,김진현;이병준;

대한기계학회논문집B, 2005. vol.29. 1, pp.71-79 crossref(new window)
6.
일 초점 산소 버너의 초점 거리가 연료 혼합 및 연소에 미치는 영향,박권하;김주연;

한국마린엔지니어링학회지, 2011. vol.35. 6, pp.814-819 crossref(new window)
 References
1.
이종철, 1986, '2개의 원형 노즐에서 분출되는 층류 확산화염의 상호작용에 한 연구,' 공학석사학위논문, 고려대학교

2.
김호영, 전철균, 1991, '기체확산 화염간의 상호작용,' 대한기계학회논문집 제15권 제1호, pp. 355-365

3.
전철균, 1993, '상호작용하의 층류 확산 화염에서 NO 의 생성,' 대한기계학회논문집 제17권 제1호, pp. 190-199

4.
Menon, R. and Gollahalli, S. R., 1985, 'Multiple Jet Gas Flames in Still Air,' In Heat Transfer in Fire and Combustion Systems, ASME poblication HTD Vol. 45, pp. 127-136

5.
Menon, R. and Gollahalli, S. R., 1988, 'Combustion Characteristics of Interaction Multiple Jets in Cross Flow,' Combustion. Science and Technology, Vol. 60, pp 375-389 crossref(new window)

6.
Burke, S. P. and Schumann, T. E. W., 1928, 'Diffusion Flames,' Industrial and Engineering Chemistru, Vol. 20, No. 10, pp. 998-1004 crossref(new window)

7.
Roper, F. G., 1977, 'The Prediction of Laminar Jet Diffusion flame Size: Part I. Theoretical Model,' Combust. Flame, Vol. 29, pp. 219-226 crossref(new window)

8.
Peters, N. and Gottgens, J., 1991, 'scaling of Buoyant Turbulent Jet Diffusion Flames,' Combust. Flames, Vol.85, pp. 206-214 crossref(new window)

9.
Kalghatgi, G. T., 1984, 'Lift-off Heights and Visible Lengths of Vertical Turbulent Jet Diffusion Flames in Still Air,' Combust. Sci. T, 41, pp. 17-29 crossref(new window)