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

Journal of Propulsion Technology ›› 2016, Vol. 37 ›› Issue (1): 71-76.

• Combustion , Heat and Mass Transfer • Previous Articles Next Articles

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

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

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)。

Abstract

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

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

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.

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.

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

高密度烃与航空煤油燃烧特性对比试验

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