提高四冲程点燃式重油航空发动机抗爆性措施

陈方超; 杨海青; 刘锐; 丁昌露; 杨琦

doi:10.13224/j.cnki.jasp.2018.03.013

提高四冲程点燃式重油航空发动机抗爆性措施

doi: 10.13224/j.cnki.jasp.2018.03.013

1.
南京航空航天大学能源与动力学院，南京 210016
2.
南京工业大学机械与动力工程学院，南京 211800

计量
- 文章访问数: 1044
- HTML浏览量: 132
- PDF量: 651
- 被引次数: 0
出版历程
- 收稿日期: 2016-09-08
- 刊出日期: 2018-03-28

Measures to improve anti-knock quality for four-stroke ignited kerosene aviation engine

摘要

摘要: 应用GT-Power软件，对某四冲程点燃式航空活塞增压发动机进行使用不同燃料的一维性能仿真分析，针对低辛烷值燃料易发生爆震的特性，分别采用添加抗爆添加剂、调整发动机的压缩比、增压压力、空燃比、缸径、点火提前角等参数，在抑制爆震的前提下尽可能实现发动机功率恢复。将原93#汽油燃料换成辛烷值为61的特种煤油燃料后，在不扩大气缸直径和扩大气缸直径两种方案下，发动机功率恢复分别达到原型机的89%和95%，油耗率分别增加5.4%和6.1%，排气温度分别提高11.4%和13.4%。
- 点燃式 /
- 四冲程航空活塞发动机 /
- 重油 /
- 抗爆性 /
- 一维性能仿真
Abstract: A one-dimensional performance simulation for a four-stroke ignited turbocharging aviation engine with different fuels was made by an engine performance simulation software GT-Power to optimize the anti-knock quality. Through the reasonable adjustment of the compression ratio, boost pressure, air-fuel ratio, cylinder diameter, ignition timing, knock tendency of the engine using the new fuel was optimized, and engines main output parameters were roughly maintained. When replacing the No.93 gasoline fuel with a new type fuel of 61 octane number, the power can reach 89% of the original power output after using the method without expanding the diameter of the cylinder and 95% after using the method of expanding the diameter of the cylinder; the specific fuel consumption increased about 5.4% and 6.1%, respectively; and the exhaust temperature increased about 11.4% and 13.4%, respectively.
- ignition /
- four-stroke aviation engine /
- kerosene /
- anti-knock quality /
- one-dimensional performance simulation

HTML

参考文献(18)

[1]	KALGHATGI G T.Fuel anti-knock quality:Part Ⅰ engine studies［J］.SAE Technical Paper 2001-3584,2001.
[2]	CHANG J,VIOLLET Y,ALZUBAIL A,et al.Octane-on-demand as an enabler for highly efficient spark ignition engines and greenhouse gas emissions improvement［R］.SAE Technical Paper 2015-01-1264,2015.
[3]	ANDERSON E K,BROWN A C,BARANSKI J,et al.Performance of low-octane fuels in a Rotax 914 engine with advanced knock mitigation strategies［R］.SAE International Paper 2011-5725,2011.
[4]	SHUAI S J,WANG Y,LI X,et al.Impact of octane number on fuel efficiency of modern vehicles［J］.SAE International Journal of Fuels and Lubricants,2013,6(3):702-712.
[5]	ATTARD W P,TOULSON E,WATSON H,et al.Abnormal combustion including mega knock in a 60% downsized highly turbocharged PFI engine［R］.SAE Technical Paper 2010-01-1456,2010.
[6]	GERTY M D,HEYWOOD J B.An investigation of fasoline engine knock limited performance and the effects of hydrogen enhancement［R］.SAE Technical Paper 2006-01-0228,2006.
[7]	高孝洪.内燃机工作过程数值计算［M］.北京:国防工业出版社,1986.
[8]	朱访君,吴坚.内燃机工作过程数值计算及其优化［M］.北京:国防工业出版社,1997.
[9]	林杰伦.内燃机工作过程数值计算［M］.西安:西安交通大学出版社,1986.
[10]	刘永长.内燃机工作过程模拟［M］.武汉:华中理工大学出版社,1996.
[11]	ZHONG Shaohua,JIN Guodong,XIE Tianfeng.Design and analysis method for internal combustion engine mufflers based on GT-Power software［J］.Automobile Technology,2003,7:7-10.
[12]	李岳林.汽油机多区燃烧模型的建立及应用研究［D］.西安:长安大学,2002.LI Yuelin.Establishment and application of multi zone combustion model of gasoline engine［D］.Xian:Changan University,2002.（in Chinese）
[13]	宋龙甫,王建昕,郑国世.B231发动机性能优化及循环模拟计算［J］.内燃机工程,2006,27(1):76-80.SONG Longfu,WANG Jianxin,ZHENG Guoshi.Performance optimization and simulation of B231 engine［J］.Internal Combustion Engine Engineering,2006,27(1):76-80.（in Chinese）
[14]	刘永长.内燃机原理［M］.武汉:华中科技大学出版社,2001.
[15]	MORRIS I.Current developments in garrett turbochargers［R］.Melbourne,Australia：Turbochargers and Turbocharging Seminar,1987.
[16]	任好.汽车发动机相关传感器动态特性的研究［D］.合肥:合肥工业大学,2005.REN Hao.Research on the dynamic characteristics of vehicle engine sensors［D］.Hefei:Hefei University of Technology,2005.（in Chinese）
[17]	ANDERSON E,BROWN A,BARANSKI J,et al.Performance of low-octane fuels in a Rotax 914 engine with advanced knock mitigation strategies［R］.AIAA-2011-5725,2011.
[18]	朱涛.EGR对汽油机排放和性能影响的研究［D］.天津:天津大学,2004.ZHU Tao.Study on the effect of EGR on the emission and performance of gasoline engine［D］.Tianjin:Tianjin University,2004.（in Chinese）