RP-3航空煤油模拟替代燃料的化学反应简化机理

推进技术 ›› 2014, Vol. 35 ›› Issue (8): 1139-1145.

RP-3航空煤油模拟替代燃料的化学反应简化机理

曾　文,李海霞,马洪安,梁　双,陈保东

沈阳航空航天大学航空航天工程学院,辽宁沈阳 110136;沈阳航空航天大学航空航天工程学院,辽宁沈阳 110136;沈阳航空航天大学航空航天工程学院,辽宁沈阳 110136;沈阳航空航天大学航空航天工程学院,辽宁沈阳 110136;沈阳航空航天大学航空航天工程学院,辽宁沈阳 110136

发布日期:2021-08-15
作者简介:曾　文(1977—),男,博士,副教授,研究领域为航空发动机燃烧过程与排放物生产的数值计算与实验研究。
基金资助:
国家自然科学基金资助项目(51376133)；辽宁省自然科学基金(2013024009)；沈阳市科技攻关项目(F13024200)。

Reduced Chemical Reaction Mechanism of Surrogate Fuel

School of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;School of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;School of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;School of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;School of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China

Published:2021-08-15

摘要/Abstract

摘要： 为了建立能适用航空发动机燃烧过程反应动力学计算的国产RP-3航空煤油的化学反应机理,在化学激波管中对国产RP-3航空煤油的着火特性进行了实验测量,获得了多工况下该航空煤油的着火延迟时间。根据RP-3航空煤油的化学组成及物理特性,提出了由正癸烷、甲苯与丙基环己烷(体积百分比为0.65/0.1/0.25)三种组份组成的模拟替代燃料,并形成了该替代燃料的化学反应详细机理。采用敏感性分析方法,对该详细反应机理进行了简化,形成了该替代燃料的简化反应机理。采用该简化机理对该替代燃料多工况下的着火特性进行了数值模拟,并与实验数据以及详细机理的计算结果进行了对比分析。结果表明,在不同压力与当量比下,RP-3航空煤油着火延迟时间的对数与着火温度的倒数呈直线关系,并且随着火温度、着火压力的升高以及当量比的降低,RP-3航空煤油着火延迟时间逐渐缩短；同时,在各工况下采用该简化机理计算得到的该替代燃料的着火延迟与详细反应机理的计算结果以及RP-3航空煤油着火延迟的实验值吻合良好。

关键词: 点火特性；RP-3航空煤油；化学反应详细机理；化学反应简化机理；数值计算

Abstract: In order to build the reaction mechanism of RP-3 kerosene which can be applied to kinetic simulate the combustion process in the aero-engine,the ignition characteristics of RP-3 kerosene were measured in a chemical shock tube and the ignition delay time of this kerosene at various conditions were gained. According to the chemical compositions and physical properties of RP-3 kerosene,a surrogate fuel includes n-decane,toluene and propyl cyclohexane(volume fraction is 0.65/0.1/0.25)was provided,and a detailed reaction mechanism for this surrogate was developed. Through sensitivity analysis,this detailed reaction mechanism was reduced and a reduced reaction mechanism was presented. The ignition characteristics of this surrogate fuel at various conditions were simulated using the reduced reaction mechanism,and the simulation results were compared with the experimental data and the calculated results by the detailed reaction mechanism. The results show that the correlation for the logarithm of the ignition delay time of RP-3 kerosene and the reciprocal ignition temperature is linear under different pressure and equivalence ratios,and with the ignition temperature and pressure increasing and the equivalence ratio decreasing,the ignition delay time of the mixture is shortening. At the same time,the ignition delays of this surrogate fuel computed by the reduced reaction mechanism under different conditions are agreed well with the calculated results by the detailed reaction mechanism and the experimental data of RP-3 kerosene.

Key words: Ignition characteristics；RP-3 kerosene；Detailed chemical reaction mechanism；Reduced chemical reaction mechanism；Numerical simulation

曾　文,李海霞,马洪安,梁　双,陈保东. RP-3航空煤油模拟替代燃料的化学反应简化机理[J]. 推进技术, 2014, 35(8): 1139-1145.

ZENG Wen,LI Hai-xia,MA Hong-an,LIANG Shuang,CHEN Bao-dong. Reduced Chemical Reaction Mechanism of Surrogate Fuel[J]. Journal of Propulsion Technology, 2014, 35(8): 1139-1145.

参考文献

[1] Edwards T,Maurice L Q.Surrogate Mixtures to Represent Complex Aviation and Rocket Fuels[J].Journal of Propulsion and Power,2001,17(2): 461-466.
[2] 马洪安,解茂昭,曾文,等.航空发动机燃烧室燃烧过程与排放物生成的反应动力学数值模拟[J].航空动力学报,2013,28(2):297-306.
[3] Agosta A,Cernansky N P,Miller D L,et al.Reference Components of Jet Fuels: Kinetic Modeling and Experimental Results[J].Experimental Thermal and Fluid Science,2004,28(7): 701-708.
[4] 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 Xuejun,YU Gang.Analysis of Thermophysical Properties of Daqing RP-3 Aviation Kerosene[J].Journal of Propulsion Technology,2006,27(2): 187-192.
[5] Cathonnet M,Bales G C,Chakir A,et al.On the Use of Detailed Chemical Kinetics to Model Aeronautical Combustors Performances[C].Paris: Proceedings of the Third European Propulsion Forum,1992,313-331.
[6] Patterson P M,Kyne A G,Pourkhashanian M,et al.Combustion of Kerosene in Counter-Flow Diffusion Flames[J].Journal of Propulsion and Power,2000,16(3): 453-460.
[7] Montgomery C J,Cannon S M,Mawid M A,et al.Reduced Chemical Kinetic Mechanisms for JP-8 Combustion[R].AIAA 2002-0336.
[8] 张英佳,黄佐华,王金华,等.激波管研究煤油/空气混合气的自着火特性[J].科学通报,2011,56(1):85-93.
[9] 王慧汝,金捷,王静波,等.正癸烷燃烧机理及航空煤油点火延迟动力学模拟[J].高等学校化学学报,2012,33(2):341-345.
[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] Dagaut P.On the Kinetics of Hydrocarbon Oxidation from Natural Gas to Kerosene and Diesel fuel[J].Physical Chemistry Chemical Physics,2002,4(1): 2079-2094.
[12] Bikas G,Peters N.Kinetic Modelling of n-Decane Combustion and Autoignition[J].Combustion and Flame,2001,126(1-2): 1456-1475.
[13] Honnet S,Seshadri K,Niemann U,et al.A Surrogate Fuel for Kerosene[J].Proceedings of the Combustion Institute,2009,32(1): 485-492.
[14] Kyne A G,Patterson P M,Pourkashanian M,et al.Prediction of Premixed Laminar Flame Structure and Burning Velocity of Aviation Fuel-Air Mixtures[R].ASME 2001-GT-0055.
[15] 谈宁馨,王静波,华晓晓,等.甲基环己烷的高温燃烧机理及动力学模拟[J].高等学校化学学报,2011,32(8):1832-1837.
[16] Rasmussen C L,Rasmussen A E,Glarborg P.Sensitizing Effects of NO_x on CH4 Oxidation at High Pressure[J].Combustion and Flame,2008,153(4): 529-545.(编辑:史亚红)收稿日期:2013-10-10；修订日期:2013-12-03。基金项目:国家自然科学基金资助项目(51376133)；辽宁省自然科学基金(2013024009)；沈阳市科技攻关项目(F13024200)。作者简介:曾文(1977—),男,博士,副教授,研究领域为航空发动机燃烧过程与排放物生产的数值计算与实验研究。E-mail:zengwen928@sohu.com