小球藻油/RP-3航空煤油混合燃料的层流燃烧特性
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摘要
在初始压力0.1MPa、初始温度450K和当量比范围0.8～1.2工况下,进行小球藻油及其与RP-3航空煤油混合燃料的层流燃烧特性研究。研究结果表明:随着当量比增加,小球藻油着火滞燃期缩短,拉伸火焰传播速度增加。与RP-3航空煤油相比,小球藻油无拉伸火焰传播速度峰值更偏向于浓混合气区域,且对当量比较为敏感,随着当量比增加,其无拉伸火焰传播速度变化显著。随着小球藻油含量增加,混合燃料无拉伸火焰传播速度峰值右移,50%小球藻油/50%RP-3航空煤油混合燃料无拉伸火焰传播速度峰值出现在当量比Φ=1.4附近。研究发现,与小球藻油和RP-3航空煤油单组分燃料相比,50%小球藻油/50%RP-3航空煤油混合燃料马克斯坦长度值变大,混合燃料具有较好的燃烧稳定性。
The laminar combustion characteristics of chlorella oil and its blends with RP-3 kerosene were examined at initial pressure of 0.1 MPa,initial temperature of 450 Kand equivalence range of 0.8-1.2 conditions.The results showed that with the increase of equivalence ratio,the ignition delay period of chlorella oil decreased and the stretched flame speed increased.Compared with RP-3 kerosene,the peak value of unstretched flame speed of chlorella oil was more shifted to the region of rich mixture,and the unstretched flame speed of chlorella oil was more sensitive to equivalence ratio.It was observed that with the increase of equivalence ratio,the unstretched flame speed of chlorella oil varied significantly.With the increase of chlorella oil addition,the peak value of unstretched flame speed shifted to right,the peak unstretched flame speed of the mixed fuel with 50% chlorella oil and 50% RP-3 appeared near the equivalence ratio of 1.4.It was found that compared with chorella oil and RP-3 single fuel,the Marksein length of the mixed fuel was more larger,indicating the combustion of the mixture with chlorella oil and RP-3 is more stable.
The laminar combustion characteristics of chlorella oil and its blends with RP-3 kerosene were examined at initial pressure of 0.1 MPa,initial temperature of 450 Kand equivalence range of 0.8-1.2 conditions.The results showed that with the increase of equivalence ratio,the ignition delay period of chlorella oil decreased and the stretched flame speed increased.Compared with RP-3 kerosene,the peak value of unstretched flame speed of chlorella oil was more shifted to the region of rich mixture,and the unstretched flame speed of chlorella oil was more sensitive to equivalence ratio.It was observed that with the increase of equivalence ratio,the unstretched flame speed of chlorella oil varied significantly.With the increase of chlorella oil addition,the peak value of unstretched flame speed shifted to right,the peak unstretched flame speed of the mixed fuel with 50% chlorella oil and 50% RP-3 appeared near the equivalence ratio of 1.4.It was found that compared with chorella oil and RP-3 single fuel,the Marksein length of the mixed fuel was more larger,indicating the combustion of the mixture with chlorella oil and RP-3 is more stable.
引文
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[2]张玉玺.从生物燃料原料的开发现状看生物燃料发展的利与弊[J].当代化工,2013,42(11):1538-1541.ZHANG Yuxi.Discussion on advantages and disadvantages of biofuel development from the aspect of development status of biofuel feedstocks[J].Contemporary Chemical Industry,2013,42(11):1538-1541.(in Chinese)
[3]姚国欣.加速发展我国生物航空燃料产业的思考[J].中外能源,2011,16(4):18-26.YAO Guoxin.Accelerating bio-jet fuel development in China[J].Sino-Global Energy,2011,16(4):18-26.(in Chinese)
[4]诸逢佳,刘建周.航空生物燃料的现状及研制前景展望[J].能源与环境,2011,(4):19-21.
[5]孙晓英,刘祥,赵雪冰,等.航空生物燃料制备技术及其应用研究进展[J].生物工程学报,2013,29(5):285-298.SUN Xiaoying,LIU Xiang,ZHAO Xuebing,et al.Progress in synthesis technologies and application of aviation biofuels[J].Chinese Journal of Biotechnology,2013,29(5):285-298.(in Chinese)
[6]张玉玺.生物航空煤油的发展现状[J].当代化工,2013,42(9):1316-1318.ZHANG Yuxi.Development status of bio-jet fuel[J].Contemporary Chemical Industry,2013,42(9):1316-1318.(in Chinese)
[7]GOWDAGIRI S,WANG W J,OEHLSCHLAEGER M A.A Shock tube ignition delay study of conventional diesel fuel and hydroprocessed renewable diesel fuel from algal oil[J].Fuel,2014,128:21-29.
[8]HOANG V N,THI L D.Experimental study of the ignition delay of diesel/biodiesel blends using a shock tube[J].Biosystems Engineering,2015,134:1-7.
[9]ZHU Yangye,LI Sijie,DAVIDSON D F,et al.Ignition delay times of conventional and alternative fuels behind reflected shock waves[J].Proceedings of the Combustion Institute,2015,35:241-248.
[10]CASEY A,ELISA T,TIM E,et al.Application of a novel charge preparation approach to testing the autoignition characteristics of JP-8and camelina hydroprocessed renewable jet fuel in a rapid compression machine[J].Combustion and Flame,2012(159):2780-2788.
[11]何旭,郑亮,赵陆明,等.生物柴油喷雾、着火和燃烧特性试验研究[J].内燃机工程,2012,33(5):41-45.HE Xu,ZHENG Liang,ZHAO Luming,et al.Experimental research on spray,ignition and combustion characteristics of biodiesel blend[J].Chinese Internal Combustion Engine Engineering,2012,33(5):41-45.(in Chinese)
[12]朱浩月,ASSANIS Dennis,黄震.低温燃烧模式生物柴油发动机CO和HC的排放[J].内燃机学报,2014,32(1):1-5.ZHU Haoyue,ASSANIS Dennis,HUANG Zhen.CO and HC Emissions of Biodiesel in Low Temperature Combustion Mode[J].Transactions of CSICE,2014,32(1):1-5.(in Chinese)
[13]尧命发,庞阔,谷静波,等.正丁醇/生物柴油高预混压燃燃烧及排放特性的试验[J].内燃机学报,2013,31(3):193-199.YAO Mingfa,PANG Kuo,GU Jingbo,et al.Experiment on combustion and emission characteristics of n-butanol/biodiesel dual fuel HPCC[J].Transactions of CSICE,2013,31(3):193-199.(in Chinese)
[14]HUI X,KUMAR K,SUNG C J,et al.Experimental studies on the combustion characteristics of alternative jet fuels[J].Fuel,2012,98:176-182.
[15]LI Bo,LIU Ning,ZHAO Runhua,et al.Flame propagation of mixtures of air with high molecular weight neat hydrocarbons and practical jet and diesel fuels[J].Proceedings of the Combustion Institute,2013(34):727-733.
[16]曾文,陈欣,马洪安,等.RP-3航空煤油层流燃烧特性的实验[J].航空动力学报,2015,30(12):2888-2896.ZENG Wen,CHEN Xin,MA Hongan,et al.Experiment on laminar combustion characteristics of RP-3kerosene[J].Journal of Aerospace Power,2015,30(12):2888-2896.(in Chinese)
[17]杨晓奕,王智超,刘子钰,等.微藻航空燃料的热氧化安定性与热沉[J].北京航空航天大学学报,2018,44(2):223-228.YANG Xiaoyi,WANG Zhichao,LIU Ziyu,et al.Thermal stability and heat sink of microalgae aviation fuels[J].Journal of Beijing University of Aeronautics and Astronautics,2018,44(2):223-228.(in Chinese)
[18]BRADLEY D,HICKS R A,LAWES M,et al.The measurement of laminar burning velocities and Markstein numbers for iso-octane-air and iso-octane-n-heptane-air mixtures at elevated temperatures and pressures in an explosion bomb[J].Combustion and Flame,1998,115(1):126-144.
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