RP-3航空煤油3组分模拟替代燃料燃烧反应机理

刘宇; 曾文; 马洪安; 陈保东

doi:10.13224/j.cnki.jasp.2016.09.002

RP-3航空煤油3组分模拟替代燃料燃烧反应机理

doi: 10.13224/j.cnki.jasp.2016.09.002

沈阳航空航天大学航空航天工程学部(院), 沈阳 110136

基金项目:

国家自然科学基金（51376133）；辽宁省博士启动基金（20141076）；辽宁省教育厅科学研究一般项目（L2015404）

详细信息

作者简介:
刘宇(1983-),男,辽宁兴城人,讲师,博士,主要从事航空发动机燃料燃烧实验与化学反应机理研究.

中图分类号: V231;TK401
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出版历程
- 收稿日期: 2015-10-20
- 刊出日期: 2016-09-28

Combustion reaction mechanism of three-component simulation surrogate fuel for RP-3 kerosene

Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136, China

摘要

摘要: 提出了一种包括65%正癸烷、10%甲苯与25%丙基环己烷3组分的RP-3航空煤油模拟替代燃料的燃烧反应机理，该机理由150种组分和591个基元反应组成.采用该燃烧反应机理对RP-3航空煤油模拟替代燃料在激波管和定容燃烧弹中的着火与燃烧特性进行数值模拟，并与相应工况实验数据进行对比分析.通过与RP-3航空煤油单组分正癸烷模拟替代燃料的燃烧反应机理进行对比分析发现：正癸烷、甲苯与丙基环己烷3组分替代燃料的燃烧反应机理对着火延迟时间的计算偏差能够控制在5%以内，对层流燃烧速度的计算偏差能够控制在10%以内，计算值明显优于正癸烷单组分替代燃料；进一步采用敏感性分析方法对3组分模拟替代燃料的燃料反应机理进行了适当修正，修正后机理对层流燃烧速度的计算偏差由10%提高到5%以内，能够更好预测所研究参数下的RP-3航空煤油的着火延迟时间和层流燃烧速度.
- RP-3航空煤油 /
- 模拟替代燃料 /
- 燃烧反应机理 /
- 着火延迟时间 /
- 层流燃烧速度
Abstract: A kind of combustion reaction mechanism of surrogate fuel was developed, including 65% n-decane, 10% toluene and 25% propyl cyclohexane for RP-3 kerosene. The mechanism consisted of 150 species and 591 elementary reactions. The ignition and combustion characteristics of surrogate fuel at various conditions were simulated by this reaction mechanism, and the simulation results were compared with those of another one-component surrogate fuel (n-decane) and the experimental data, respectively. Results show that the chemical reaction mechanism of three-component surrogate fuel can accurately calculate the ignition and combustion characteristics of RP-3 kerosene. The calculation deviation of the ignition delay time can be controlled within 5%, and the calculation error of the laminar burning velocity can be controlled within 10%, better than those of n-decane. The combustion reaction mechanism of three-component surrogate fuel was also modified by sensitivity analysis, showing that the calculation error of the laminar burning velocity was improved from 10% to 5%. This means the modified mechanism can predict the ignition delay time and laminar burning velocity of RP-3 kerosene better.
- RP-3 kerosene /
- simulation surrogate fuel /
- combustion reaction mechanism /
- ignition delay time /
- laminar burning velocity

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