Please wait a minute...
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2018, Vol. 52 Issue (9): 1821-1827    DOI: 10.3785/j.issn.1008-973X.2018.09.024
Mechanical and Energy Engineering     
Experimental study on ethanol spray combustion characteristics under oxy-fuel conditions
ZHOU Hao, LI Ning, LI Yuan, ZHAO Meng-hao, CEN Ke-fa
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
Download:   PDF(4090KB) HTML
Export: BibTeX | EndNote (RIS)      


The combustion characteristics of ethanol spray under oxy-fuel conditions were investigated in the spray combustion test rig conducted using a McKenna flat flame burner. The flame feature parameters and CH* free radical distribution feature parameters were extracted based on image processing technology. The flame height, flame area and flame average brightness were proposed to characterize the flame features. The study focused on the effect of O2 concentration, CO2 concentration and ethanol/N2 mass flow rate ratio on spray flame and CH* free radical distribution characteristics. Results show that, in the O2 concentration range of 21% to 55%, the flame height and the flame area both decrease with the increase of O2 concentration on while the flame average brightness shows the opposite tendency. Higher O2 concentration leads to smaller reaction distribution region and higher combustion intensity according to the CH* radical distribution characteristics. The effect of CO2 concentration on flame size and flame average brightness is opposite to that of O2 concentration, and the effect of CO2 concentration on flame average brightness is more remarkable than that on flame size. In addition, the increasing trends of flame size and combustion intensity are observed with increasing ethanol/N2 mass flow rate ratio.

Received: 17 July 2017      Published: 20 September 2018
CLC:  TK16  
Cite this article:

ZHOU Hao, LI Ning, LI Yuan, ZHAO Meng-hao, CEN Ke-fa. Experimental study on ethanol spray combustion characteristics under oxy-fuel conditions. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(9): 1821-1827.

URL:     OR



[1] 国家发展和改革委员会. 可再生能源中长期发展规划[J]. 可再生能源, 2007, 25(6):1-5 National Development and Reform Commission. Medium-and-long term renewable energy development plan[J]. Renewable Energy, 2007, 25(6):1-5
[2] 曹建明. 喷雾学[M]. 北京:机械工业出版社, 2005:181-188.
[3] CIEUTAT D, SANCHEZ-MOLINERO I, TSIAVA R, et al. The oxy-combustion burner development for the CO2 pilot at Lacq[J]. Energy Procedia, 2009, 1(1):519-526.
[4] TOFTEGAARD M B, BRIX J, JENSEN P A, et al. Oxy-fuel combustion of solid fuels[J]. Progress in Energy & Combustion Science, 2010, 36(5):581-625.
[5] 游卓, 王智化, 周志军, 等. 1000 MW燃煤锅炉富氧燃烧改造及NOx排放的数值模拟[J]. 浙江大学学报:工学版, 2014, 48(11):2080-2086 YOU Zhuo, WANG Zhi-hua, ZHOU Zhi-jun, et al. Numerical simulation of NOx emission from a 1000 MW boiler retrofitted to oxy-fuel combustion[J]. Journal of Zhejiang University:Engineering Science, 2014, 48(11):2080-2086
[6] CHEN L, YONG S Z, GHONIEM A F. Oxy-fuel combustion of pulverized coal:characterization, fundamentals, stabilization and CFD modeling[J]. Progress in Energy and Combustion Science, 2012, 38:156-214.
[7] KÖSER J, BECKER L G, VOROBIEV N, et al. Characterization of single coal particle combustion within oxygen-enriched environments using high-speed OH-PLIF[J]. Applied Physics B, 2015, 121(4):459-464.
[8] CLÉON G, HONORÉ D, LACOUR C, et al. Experimental investigation of structure and stabilization of spray oxyfuel flames diluted by carbon dioxide[J]. Proceedings of the Combustion Institute, 2014, 35(3):3565-3572.
[9] KHATAMI R, STIVERS C, JOSHI K. Combustion behavior of single particles from three different coal ranks and from sugar cane bagasse in O2/N2 and O2/CO2 atmospheres[J]. Combustion & Flame, 2012, 159(3):1253-1271.
[10] RIAZA J, KHATAMI R, LEVENDIS Y A, et al. Combustion of single biomass particles in air and in oxy-fuel conditions[J]. Biomass & Bioenergy, 2014, 64(6):162-174.
[11] SHAN F, LIN Q, ZHOU K, et al. An experimental study of ignition and combustion of single biomass pellets in air and oxy-fuel[J]. Fuel, 2017, 188:277-284.
[12] HJÄRTSTAM S, ANDERSSON K, JOHNSSON F, et al. Combustion characteristics of lignite-fired oxy-fuel flames[J]. Fuel, 2009, 88(11):2216-2224.
[13] 卜昌盛, 庄亚明, 刘道银, 等. 单颗粒流化床富氧燃烧特性研究[J]. 工程热物理学报, 2015(5):1143-1147 BU Chang-sheng, ZHUANG Ya-ming, LIU Dao-yang, et al. Fluidized bed combustion of a single coal particle in oxy-fuel environment[J]. Journal of Engineering Thermophysics, 2015(5):1143-1147
[14] ANDERSSON K, JOHANSSON R, JOHANSSON F, et al. Radiation intensity of propane-fired oxy-fuel flames:implications for soot formation[J]. Energy & Fuels, 2008, 22(3):1535-1541.
[15] AMATO A, HUDAK B, D'SOUZA P, et al. Measurements and analysis of CO and O2 emissions in CH4/CO2/O2 flames[J]. Proceedings of the Combustion Institute, 2011, 33(2):3399-3405.
[16] HEIL P, TOPOROV D, FÖRSTER M, et al. Experimental investigation on the effect of O2, and CO2, on burning rates during oxyfuel combustion of methane[J]. Proceedings of the Combustion Institute, 2011, 33(2):3407-3413.
[17] ZHU D L, EGOLFOPOULOS F N, LAW C K. Experimental and numerical determination of laminar flame speeds of methane/(Ar, N2, CO2)-air mixtures as function of stoichiometry, pressure, and flame temperature[J]. Symposium on Combustion, 1989, 22(1):1537-1545.
[18] TAN Y, DOUGLAS M A, THAMBIMUTHU K V. CO2 capture using oxygen enhanced combustion strategies for natural gas power plants[J]. Fuel, 2002, 81(8):1007-1016.
[19] ANDERSSON K, JOHNSSON F. Flame and radiation characteristics of gas-fired O2/CO2, combustion[J]. Fuel, 2007, 86(5/6):656-668.
[20] GAN Y, LUO Z, CHENG Y, et al. The electro-spraying characteristics of ethanol for application in a small-scale combustor under combined electric field[J]. Applied Thermal Engineering, 2015, 87:595-604.
[21] GAN Y, TONG Y, JU Y, et al. Experimental study on electro-spraying and combustion characteristics in meso-scale combustors[J]. Energy Conversion and Management, 2017, 131:10-17.
[22] GAN Y, CHEN X, TONG Y, et al. Thermal performance of a meso-scale combustor with electrospray technique using liquid ethanol as fuel[J]. Applied Thermal Engineering, 2018, 128:274-281.
[23] QIU T, YAN Y, LU G. A new edge detection algorithm for flame image processing[C]//Instrumentation and Measurement Technology Conference. Graz:IEEE, 2011:1-4.
[24] QIU T, YAN Y, LU G. An autoadaptive edge-detection algorithm for flame and fire image processing[J]. IEEE Transactions on Instrumentation and Measurement, 2012, 61(5):1486-1493.

[1] DUAN Yi, CHENG Le-ming, WU Xue-song, QIU Kun-zan, LUO Zhong-yang. Experimental study on premixed combustion in two-layer porous media with embedded heat exchangers[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2017, 51(8): 1626-1632.
[2] TUN Hua-Cheng, WANG Fu, PU Shi-Liang, PU Xin-Guo, YUAN Tian-Fu, CHEN Ling-Gong, CEN Ge-Fa. Particle identification and location measurement in digital
inline holography
[3] MAO Yan-Yan, MA Ceng-Yi, TU Liang, et al. Conversion of bromine during the pyrolysis of waste printed circuit boards[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2009, 43(5): 937-941.