Abstract
Biodiesel is a kind of clean and renewable energy. The effect of ethanol addition on the flame characteristics of waste oil biodiesel is studied by using OH-PLIF technique from the perspective of OH radical evolution. Ethanol addition leads to the appearance of diffusion flame reaction interface ahead of schedule and shortens the diffusion flame height. The experimental results show a linear correlation between the flame height and the fuel flow rate for a given fuel and oxidant. The same conclusion is drawn from the theoretical analysis of the approximate model. In addition, ethanol addition makes the average OH signal intensity of flame at different fuel flow rate tend to be consistent and the fuel flow rate enlarge where the flame field shows the strongest oxidation performance. Average OH signal intensity begins to weaken at larger fuel flow rate, which indicates that fuel flow rate of fuels blended with ethanol can change in larger range and does not significantly affect the uniformity of combustion.
摘要
生物柴油是一种清洁可再生能源。本文应用OH-PLIF 技术从OH 自由基演化的角度研究了乙醇 添加对地沟油生物柴油燃烧火焰特性的影响。添加乙醇会使扩散火焰反应界面前移,同时会降低扩散 火焰高度。在燃料和氧化剂给定的情况下,试验和理论分析都表明燃油流率和火焰高度呈线性关系。 添加乙醇会使火焰平均OH 信号强度在火焰中分布更为均匀,且在燃油流率较大时火焰才会呈现出较 强的氧化性。当燃油流率较大时,平均OH 信号强度开始减弱,表明在地沟油生物柴油中添加乙醇时, 燃油流率可在较大的燃油流率内变化,而不明显影响火焰均匀性。
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References
GHAJAR M, KAKAEE A H, MASHADI B. Semi-empirical modeling of volumetric efficiency in engines equipped with variable valve timing system [J]. Journal of Central South University, 2016, 23(12): 3132–3142. DOI: 10.1007/s11771-016-3379-3.
HABIBULLAH M, MASJUKI H H, KALAM M A. Potential of biodiesel as a renewable energy source in Bangladesh [J]. Renewable and Sustainable Energy Reviews, 2015, 50: 819–834. DOI: 10.1016/j.rser.2015.04.149.
KHALIL A E E, GUPTA A K. Hydroxyl radical distribution in distributed reaction combustion condition [J]. Fuel, 2014, 122(15): 28–35. DOI: 10.1016/j.fuel.2014.01.010.
YAMAMOTO K, ISII S, OHNISHI M. Local flame structure and turbulent burning velocity by joint PLIF imaging [J]. Proceedings of the Combustion Institute, 2011, 33(1): 1285–1292. DOI: 10.1016/j.proci.2010.06.087.
LI Z S, LI B, SUN Z W. Turbulence and combustion interaction: High resolution local flame front structure visualization using simultaneous single-shot PLIF imaging of CH, OH, and CH2 O in a piloted premixed jet flame [J]. Combustion and Flame, 2010, 157(6): 1087–1096. DOI: 10.1016/j.combustflame.2010.02.017.
YANG Li, WANG Zhi-hua, ZHU Yan-qun, LI Zhong-shan. Premixed jet flame characteristics of syngas using OH planar laser induced fluorescence [J]. Chinese Science Bulletin, 2011, 56(26): 2862–2868. DOI: 10.1007/s11434-011-4630-9.
YUAN R, KARIUKI J, DOWLUT A. Reaction zone visualisation in swirling spray n-heptane flames [J]. Proceedings of the Combustion Institute, 2014, 35(2): 1649–1656. DOI: 10.1016/j.proci.2014.06.012.
ALVISO D, ROLON J C, SCOUFLAIRE P. Experimental and numerical studies of biodiesel combustion mechanisms using a laminar counterflow spray premixed flame [J]. Fuel, 2015, 153: 154–165. DOI: 10.1016/j.fuel.2015.02.079.
ZHANG M, WANG J, XIE Y. Measurement on instantaneous flame front structure of turbulent premixed CH4/H2/air flames [J]. Experimental Thermal and Fluid Science, 2014, 52(1): 288–296. DOI: 10.1016/j.expthermflusci.2013.10.002.
MATYNIA A, IDIR M, MOLET J. Absolute OH concentration profiles measurements in high pressure counterflow flames by coupling LIF, PLIF, and absorption techniques [J]. Applied Physics B: Lasers and Optics, 2012, 108(2): 393–405. DOI: 10.1007/s00340-012-4959-z.
SANG H W, DOOLEY S, DRYER F L. Kinetic effects of aromatic molecular structures on diffusion flame extinction [J]. Proceedings of the Combustion Institute, 2011, 33(1): 1163–1170. DOI: 10.1016/j.proci.2010.05.082.
WON S H, SUN W, JU Y. Kinetic effects of toluene blending on the extinction limit of n-decane diffusion flames [J]. Combustion and Flame, 2010, 157(3): 411–420. DOI: 10.1016/j.combustflame.2009.11.016.
FRANZELLI B, SCOUFLAIRE P, CANDEL S. Timeresolved spatial patterns and interactions of soot, PAH and OH in a turbulent diffusion flame [J]. Proceedings of the Combustion Institute, 2014, 35(2): 1921–1929. DOI: 10.1016/j.proci.2014.06.123.
PARASARA M U, ADROJA F N. An experimental investigation of palm oil blend with diesel fuel on engine performance and emission of a diesel engine: A review [J]. Journal of Thermal Engineering and Application, 2015, 2(2): 1–8.
QI D H, CHEN H, GENG L M. Performance and combustion characteristics of biodiesel–diesel–methanol blend fuelled engine [J]. Applied Energy, 2010, 87(5): 1679–1686. DOI: 10.1016/j.apenergy.2009.10.016.
MUTHURAMAN S. The performance of four stroke surface ignition ceramic heater C.I. engine using ethanol-diesel blend [J]. International Journal of Energy and Power Engineering, 2014, 3(2): 38–45. DOI: 10.11648/j.ijepe. 20140302.11.
MERCHAN-MERCHAN W, WARE H O T. Study of carbon and carbon–metal particulates in a canola methyl ester air-flame [J]. Combustion and Flame, 2015, 162(1): 216–225. DOI: 10.1016/j.combustflame.2014.07.007.
BOTERO M L, MOSBACH S, AKROYD J. Sooting tendency of surrogates for the aromatic fractions of diesel and gasoline in a wick-fed diffusion flame [J]. Fuel, 2015, 153(3): 31–39. DOI: 10.1016/j.fuel.2015.02.108.
KHOSOUSI A, LIU F, DWORKIN S B. Experimental and numerical study of soot formation in laminar coflow diffusion flames of gasoline/ethanol blends [J]. Combustion and Flame, 2015, 162(10): 3925–3933. DOI: 10.1016/j.combustflame.2015.07.029.
KONNOV A A, MEUWISSEN R J, GOEY L P H D. The temperature dependence of the laminar burning velocity of ethanol flames [J]. Proceedings of the Combustion Institute, 2011, 33(1): 1011–1019. DOI: 10.1016/j.proci.2010.06.143.
TOSATTO L, MELLA F, LONG M B. A study of JP-8 surrogate coflow flame structure by combined use of laser diagnostics and numerical simulation [J]. Combustion and Flame, 2012, 159(10): 3027–3039. DOI: 10.1016/j.combustflame.2012.05.001.
ELBAZ A M, ROBERTS W L. Flame structure of methane inverse diffusion flame [J]. Experimental Thermal and Fluid Science, 2014, 56(5): 23–32. DOI: 0.1016/j.expthermflusci. 2013.11.011.
LARTIGUE G, MEIER U, BÉRAT C. Experimental and numerical investigation of self-excited combustion oscillations in a scaled gas turbine combustor [J]. Applied Thermal Engineering, 2004, 24(11): 1583–1592. DOI: 10.1016/j.applthermaleng.2003.10.026.
MCALLISTER S, CHEN J Y, FERNANDEZPELLO A C. Fundamentals of combustion processes [M]. New York: Springer, 2011. DOI: 10.1007/978-1-4419-7943-8_7.
SUNDERLAND P B, QUINTIERE J G, TABAKA G A. Analysis and measurement of candle flame shapes [J]. Proceedings of the Combustion Institute, 2011, 33(2): 2489–2496. DOI: 10.1016/j.proci.2010.06.095.
LI Fa-she, DU Wei, BAO Gui-rong. Improving research for low temperature fluidity of biodiesel [J]. Journal of Kunming University of Science and Technology, 2014, 39(5): 11–15. (in Chinese) DOI: 10.3969/j.issn.1007-855x.2014.05.003.
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Foundation item: Project(51766007) supported by the National Natural Science Foundation of China; Project(U1602272) supported by the NSFC-Yunnan Joint Fund Project; Project(2015FB128) supported by the Natural Science Fund Project in Yunnan Province, China; Project(CNMRCUTS1704) supported by the Research Fund from State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, China
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Gao, J., Li, Fs., Zhang, Xh. et al. Effect of ethanol addition on flame characteristics of waste oil biodiesel. J. Cent. South Univ. 25, 1043–1051 (2018). https://doi.org/10.1007/s11771-018-3804-x
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DOI: https://doi.org/10.1007/s11771-018-3804-x