高密度烃与航空煤油燃烧特性对比试验

推进技术 ›› 2016, Vol. 37 ›› Issue (1): 71-76.

高密度烃与航空煤油燃烧特性对比试验

王宝源¹,李鹏飞²,朱冬清²,金仁瀚²,刘勇²

北京动力机械研究所高超声速冲压发动机技术重点实验室，北京 100074,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室，江苏南京 210016

发布日期:2021-08-15
作者简介:王宝源，男，工程师，研究领域为冲压发动机燃烧与热防护。
基金资助:
高超声速冲压发动机技术重点实验室开放基金资助(2012)。

Comparison Based on Combustion Characteristic Test forHigh Density Hydrocarbons and Jet Fuel

Science and Technology on Scramjet Laboratory，Beijing Power Machinery Institute，Beijing 100074，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System，Nanjing 210016，China and Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power System，Nanjing 210016，China

Published:2021-08-15

摘要/Abstract

摘要： 采用本生灯方法并结合数字图像处理方法分别对高密度烃和航空煤油的燃烧特性进行了试验研究，分析了不同燃油流量下当量比、预混燃气温度对层流火焰传播速度与贫油点火、熄火极限的影响，从而确定了高密度烃的层流火焰传播特性。实验研究表明:当量比为1.1时，高密度烃层流火焰传播速度达到最大值，而航空煤油在当量比为1时达到最大值，且在相同工况下高密度烃的层流火焰传播速度的最大值较小；层流火焰传播速度随混合气温度的增加而变大；燃油流量的改变对层流火焰传播速度的影响不大；相同工况下高密度烃的贫油点火、熄火极限比航空煤油的要大，且燃油流量在小于35ml/h区域内，贫油点火极限、熄火极限的当量比，都随燃油流量的变化都存在一定的波动。

关键词: 高密度烃；航空煤油；层流火焰传播速度；本生灯

Abstract: The Bunsen burner method and image processing method were applied to measure the burning characteristics of high density hydrocarbons and jet fuel，and analyze the laminar flame speed as well as lean oil ignition and extinction limit changing with the initial state of the gas mixture and equivalence ratio. Then the laminar flame characteristics of high density hydrocarbon can be determined. The experiment results show that when equivalent ratio is 1.1，laminar flame speed of high density hydrocarbons reach maximum，and laminar flame speed of jet fuel reach maximum when the equivalent ratio is 1，and under the same conditions，the maximum for laminar flame speed of high density hydrocarbons is smaller. Laminar flame speed increases with the rise for the temperature of the gas mixture. The changes of fuel flow have little effect on laminar flame speed. At the same condition，lean ignition limit and lean extinction limit of high density hydrocarbons is larger than jet fuel's. When fuel flow is less than 35mL/h，with the change of fuel flow there are some fluctuations on the equivalence ratio of lean ignition limit and lean extinction limit.

Key words: High density hydrocarbons；Jet fuel；Laminar flame speed；Bunsen burner

王宝源,李鹏飞,朱冬清,金仁瀚,刘勇. 高密度烃与航空煤油燃烧特性对比试验[J]. 推进技术, 2016, 37(1): 71-76.

WANG Bao-yuan¹,LI Peng-fei²,ZHU Dong-qing²,JIN Ren-han²,LIU Yong². Comparison Based on Combustion Characteristic Test forHigh Density Hydrocarbons and Jet Fuel[J]. Journal of Propulsion Technology, 2016, 37(1): 71-76.

参考文献

[1] Zhenwei Zhao,Andrei Kazakov, Juan Li, et al. The Initial Temperature and N2 Dilution Effect on the Laminar Flame Speed of Propane/Air[J]. Combustion Science and Technology, 2004, 176(10): 1705-1723.
[2] Alexander A Konnov, Igor V Dyakov. Measurement of Propagation Speeds in Adiabatic Cellular Premixed Flames of CH4+O₂+CO₂[J]. Experimental Thermal and Fluid Science, 2005, 29(8): 901-907.
[3] Xin Hui, Kamal Kumar, Chih-Jen Sung, et al. Experimental Studies on the Combustion Characteristics of Alternative Jet Fuels[J]. Fuel, 2012, 98(10): 176–182.
[4] Kumar K, Sung C J. Laminar Flame Speeds and Extinction Limits of Preheated n-Decane/ O₂/N2 and n-Dodecane/O₂/N2 Mixtures[J]. Combustion and Flame, 2007, 151(1-2): 209-224.
[5] Cheng Tung Chong, Simone Hochgreb. Measurements of Laminar Flame Speeds of Acetone/Methane/Air Mixtures[J]. Combustion Science and Technology, 2011, 158(3): 490–500.
[6] Huzayyin A S, Moneib H A, Shehatta M S, et al. Laminar Burning Velocity and Explosion Index of LPG–Air and Propane–Air Mixtures[J]. Fuel, 2008, 87(1): 39–57.
[7] 范周琴, 刘卫东, 孙明波. 高温预混气体火焰传播速度研究[J]. 弹箭与制导学报, 2011, 31 (3):105-107.
[8] 范学军, 俞刚. 大庆RP-3航空煤油热物性分析[J]. 推进技术, 2006, 27(2):187-192. (FAN Xue- jun , YU Gang. Analysis of Thermo Physical Properties of Da qing RP-3 Aviation Kerosene[J]. Journal of Propulsion Technology, 2006, 27 (2): 187-192.)
[9] 李博, 田雪沁, 张扬, 等. 对冲火焰流场的二维分布对层流火焰传播速度测量的影响[J]. 工程热物理学报, 2011, 32(4): 703-706.
[10] 曾文, 陈潇潇, 刘静忱, 等. 航空煤油替代燃料的着火与燃烧特性[J]. 航空动力学报, 2012, 27(8):1688-1695.
[11] 胡贤忠, 于庆波, 秦勤, 等. CH4/O₂/CO₂ 层流预混火焰传播速度实验研究[J]. 东北大学学报, 2013, 34(11): 1593-1596.
[12] 孟祥文, 杨星, 康婵, 等. 直流电场对预混CH4/O₂/N2火焰传播特性影响的实验研究[J]. 西安交通大学学报, 2013, 47(7), 13-17.
[13] 唐安东, 孟祥文, 周荣芳, 等. 非均匀电场对火焰传播速率的影响[J]. 西安交通大学学报, 2012, 46(9):16-20.
[14] 黄夏, 黄勇, 巩帆. 本生灯层流预混火焰稳定点与熄火机理[J]. 北京航空航天大学学报, 2013, 39(10): 1325-1330.
[15] Egolfopoulos F N, Zhang H, Zhang Z. Wall Effects on the Propagation and Extinction of Steady, Strained, Laminar Premixed Flames[J]. Combustion and Flame, 1997, 109(1-2): 237-252.
[16] 岑可法, 姚强, 骆仲泱, 等. 高等燃烧学[M]. 杭州:浙江大学出版社, 2002. 　　(编辑:梅瑛)　　　　　　　　　　　*　收稿日期:2014-09-17；修订日期:2014-11-18。基金项目:高超声速冲压发动机技术重点实验室开放基金资助(2012)。作者简介:王宝源,男,工程师,研究领域为冲压发动机燃烧与热防护。E-mail: ustcbadbb@163.com