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Influence of Changing Combustor Pressure on Combustion Characteristics and Reaction Zone in the Partially Premixed Flame with $CH_4$, $C_2H_4$ and $C_3H_8$  

Son, Je-Ha (부산대학교 대학원 기계공학과)
Kim, Jong-Ryul (LG전자 HA 공통기술연구소)
Choi, Gyung-Min (부산대학교 기계공학부)
Kim, Duck-Jool (부산대학교 기계공학부)
Publication Information
Journal of the Korean Society of Combustion / v.16, no.3, 2011 , pp. 33-40 More about this Journal
Abstract
Combustion experiments were conducted at three different fuels ($CH_4$, $C_2H_4$ and $C_3H_8$) to investigate the effects of combustor pressure (30 ~ -30 kPa) on combustion charateristics and reaction zone structure. Regardless of the fuels, emission index of CO (EICO) increased with decreasing combustor pressure, and EICO of $C_2H_4$ was mostly affected by changing combustor pressure at subatmospheric pressure. In order to observe reaction zone, $OH^*$, $CH^*$ and ${C_2}^*$ chemiluminescence intensity were measured. The sequence of the chemiluminescence intensity peak position was affected by chemical characteristics of fuels rather than changing combustor pressure. The emission zone thickness of $C_2H_4$ and $C_3H_8$, defined by the full width at half maximum (FWHM) of $CH^*$ intensity profile, were increased with decreasing combustor pressure. however, the thickness of $C_2H_4$ exhibited the opposite tendency due to the characteristics of the fuel as the bond structure.
Keywords
Partially premixed flame; Combustor pressure; Combustion characteristic; Reaction zone; Emission zone thickness; EICO;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Soike, A., Dinkelacker, F., Leipertz, A., "Pressure Influence on the Flame Front Curvature of Turbulent Premixed Flame: Comparison Between Experiment and Theory", Combustion and Flame, Vol. 132, 2001, pp. 451-462
2 J.T. Agnew, L.B. Graiff, "The pressure dependence of laminar burning velocity by the spherical bomb method", Combustion and Flame, Vol. 5, 1961, pp. 209-219   DOI
3 H. Kobayashi, "Experimental study of high-Pressure turbulent premixed flames", Experimental Thermal and Fluid Science, Vol. 132, 2002, pp. 375-387
4 Liakos, H.H., Founti, M.A. and Markatos, N.C., "The relative importance of combustion mechanisms in industrial premixed flames under high pressure", Applied Thermal Engineering, Vol. 20, 2000, pp. 925-940   DOI   ScienceOn
5 김종률, 손제하, 노영구, 김윤동, 최경민, 김덕줄, "부분 예혼합화염의 연소실 압력이 연료별(메탄, 에틸렌, 프로판) 연소특성과 국소화염 반응에 미치는 영향", 한국연소학회지, Vol. 15, 2010, pp. 29-36
6 Andrew, G. E., Bradely, D., "The Burning Velocity of Methane-air mixtures", Combustion and flame, Vol. 19, No. 275, 1972
7 J. Furukawa, E. Harada, "Local reaction zone thickness of a high intensity turbulent premixed flame", Symposium (International) on Combustion, Vol. 23, 1991, pp. 789-794
8 Jun Kojima, Yuji Ikeda, Tsuyoshi Nakajima, "Basic aspects of OH(A), CH(A), and $C_2(d)$ chmiluminescence in the reaction zone of laminar methaneair premixed flames", Combustion and flame, Vol. 140, 2005, pp. 34-45   DOI   ScienceOn
9 Gottgen, J., Mauss, F., Peter, N., "Analytic Approximations of Burning Velocities and Flame Thickness of Lean Hydrogen, Methane, Ethylene, Ethane, Acetylene and Propane Flames", Twenty-fourth Symposium (international) on Conbustion, The Combustion Institute, 1992, pp. 129-135
10 권순익, Philip J. Bowen, "메탄-공기 예혼합기에서의 층류 화염속도 및 화염두께 예측", 대한기계학회논문집 B권, 제27권, 제9호, 2003, pp. 1201-1208
11 R.C Reid, J.M. Prausnitz, B.E. Poling, The properties of gases and liquids, 4, 1986, pp. 577-632
12 G. J. Gibbs, H. F. Calcote, "Effect of Molecular Structure on Burning Velocity", Journal of Chemical and Engineering, Vol. 4, 1959, pp. 226-237
13 Hua Wei Huang, Yang Zhang, "Digital colour image processing based measurement of premixed $CH_4$ + air and $C_2H_4$ + air flame chemiluminescence", Fuel, Vol. 90, 2011, pp. 48-53   DOI   ScienceOn