火花辅助压燃准维燃烧模型的建立及应用

doi:10.19562/j.chinasae.qcgc.2023.11.014

汽车工程 ›› 2023, Vol. 45 ›› Issue (11): 2130-2138.doi: 10.19562/j.chinasae.qcgc.2023.11.014

所属专题：发动机&排放专题2023年

火花辅助压燃准维燃烧模型的建立及应用

王耀东^1,²,苏岩^1,²(),郎茂春^1,²,李小平^1,²,解方喜^1,²

^1.吉林大学，汽车仿真与控制国家重点实验室，长春 130025
^2.吉林大学汽车工程学院，长春 130025

收稿日期:2023-04-05 修回日期:2023-05-17 出版日期:2023-11-25 发布日期:2023-11-27
通讯作者: 苏岩 E-mail:suyan@jlu.edu.cn
基金资助:
国家自然科学基金区域创新发展联合基金(U21A20166);国家能源石油炼制技术研发中心开放基金(33600000-22-ZC0607-0003)

Development and Application of A Spark-Assisted Compression Ignition Quasi-Dimensional Combustion Model

Yaodong Wang^1,²,Yan Su^1,²(),Maochun Lang^1,²,Xiaoping Li^1,²,Fangxi Xie^1,²

^1.Jilin University，State Key Laboratory of Automotive Simulation and Control，Changchun 　130025
^2.College of Automotive Engineering，Jilin University，Changchun 　130025

Received:2023-04-05 Revised:2023-05-17 Online:2023-11-25 Published:2023-11-27
Contact: Yan Su E-mail:suyan@jlu.edu.cn

摘要/Abstract

摘要：

本文采用湍流火焰传播速度模型描述火花点燃（SI）燃烧，针对单个自燃点仍采用湍流火焰传播速度模型，将所有自燃点的当量湍流火焰速度集合作为总当量湍流火焰速度用来描述压燃燃烧，进而建立了火花辅助压燃（SACI）准维燃烧模型。基于该模型研究了空气、外部废气再循环（EGR）稀释对SACI的影响，仿真和实验匹配良好。计算表明：SACI的火焰传播速度高于SI，随点火提前而增大，外部EGR稀释的火焰传播速度低于空气稀释；点火推迟或者增加外部EGR都会导致火焰前锋面面积峰值升高，衰减速度减慢，燃烧等容度减弱；稀释率相当时，空气稀释的热效率更高，但外部EGR稀释的尾气后处理更容易。

关键词: 火花辅助压燃, 湍流火焰传播速度模型, 火花辅助压燃准维燃烧模型, 总当量湍流火焰速度, 外部废气再循环

Abstract:

In this paper， the turbulent flame propagation speed model is used to describe spark ignition （SI） combustion. For a single self-ignition point， the turbulent flame propagation speed model is still used， the sum of the equivalent turbulent flame speed of all self-ignition points is considered as the total equivalent turbulent flame speed， which is used to describe compression ignition combustion and then a spark-assisted compression ignition （SACI） quasi-dimensional combustion model is established. The air and external exhaust gas recirculation （EGR） dilution SACI based on this model is studied， and the simulation and experimental results match well. The calculation shows that the flame propagation speed of SACI is higher than that of SI， which increases with ignition advanced.， with the flame propagation speed of external EGR dilution lower than that of air dilution. Delaying ignition or increasing external EGR can lead to an increase in the peak area of the flame front， a slowing down of the decay rate and a weakening of the isovolumetric combustion. The thermal efficiency of air dilution is higher when the dilution ratio is comparable， but the exhaust aftertreatment of external EGR dilution is easier.

Key words: spark-assisted compression ignition （SACI）, turbulent flame propagation speed model, spark-assisted compression ignition quasi-dimensional combustion model, total equivalent turbulent flame speed, external exhaust gas recirculation

王耀东,苏岩,郎茂春,李小平,解方喜. 火花辅助压燃准维燃烧模型的建立及应用[J]. 汽车工程, 2023, 45(11): 2130-2138.

Yaodong Wang,Yan Su,Maochun Lang,Xiaoping Li,Fangxi Xie. Development and Application of A Spark-Assisted Compression Ignition Quasi-Dimensional Combustion Model[J]. Automotive Engineering, 2023, 45(11): 2130-2138.

图/表 15

表1

表2

图1

图2

图3

图4

图5

图6

图7

图8

图9

图10

图11

图12

图13

参考文献 21

1	JOSHI A. Review of vehicle engine efficiency and emissions ［J］. SAE International Journal of Advances and Current Practices in Mobility， 2020， 2（5）： 2479-2507.
2	LYU M， BAO X F， ZHU R C， et al. State-of-the-art outlook for light-duty vehicle emission control standards and technologies in China ［J］. Clean Technologies and Environmental Policy， 2020， 22（4）： 757-771.
3	ONISHI S， JO S H， SHODA K， et al. Active thermo-atmosphere combustion （ATAC） - a new combustion process for internal combustion engines ［C］. SAE Paper 790501.
4	NOGUCHI M， TANAKA Y， TANAKA T， et al. A study on gasoline engine combustion by observation of intermediate reactive products during combustion ［C］. SAE Paper 790840.
5	ZHAO H， LI J， MA T， et al. Performance and analysis of a 4-stroke multi-cylinder gasoline engine with CAI combustion ［C］. SAE Paper 2002-01-0420.
6	NIER T， KULZER A， KARRELMEYER R. Analysis of the combustion mode switch between SI and gasoline HCCI ［C］. SAE Paper 2012-01-1105.
7	URUSHIHARA T， YAMAGUCHI K， YOSHIZAWA K， et al. A study of a gasoline-fueled compression ignition engine ∼ expansion of HCCI operation range using SI combustion as a trigger of compression ignition ∼ ［C］. SAE Paper 2005-01-0180.
8	PERSSON H， JOHANSSON B， REMÓN A. The effect of swirl on spark assisted compression ignition （SACI）［C］. SAE Paper 2007-01-1856.
9	MANOFSKY L， VAVRA J， ASSANIS D N， et al. Bridging the gap between HCCI and SI： spark-assisted compression ignition ［C］. SAE Paper 2011-01-1179.
10	LI L， HUI X， TAO C， et al. Experimental study on spark assisted compression ignition （SACI） combustion with positive valve overlap in a HCCI gasoline engine ［C］. SAE Paper 2012-01-1126.
11	BLIZARD N C， KECK J C. Experimental and theoretical investigation of turbulent burning model for internal combustion engines ［C］. SAE Paper 740191.
12	TABACZYNSKI R J， FERGUSON C R， RADHAKRISHNAN K. A turbulent entrainment model for spark-ignition engine combustion ［C］. SAE Paper 770647.
13	侯圣智，谢辉，陈韬，等. HCCI汽油机混合燃烧及放热率计算模型［J］. 天津大学学报， 2009， 42（11）： 997-1005.
	HOU S Z， XIE H， CHEN T， et al. Hybrid combustion and its heat release rate computing model of an HCCI gasoline engine ［J］. Journal of Tianjin University， 2009， 42（11）： 997-1005.
14	GLEWEN W J， WAGNER R M， EDWARDS K D， et al. Analysis of cyclic variability in spark-assisted HCCI combustion using a double Wiebe function ［J］. Proceedings of the Combustion Institute， 2009， 32（2）： 2885-2892.
15	孙永瑞，胡松，杨传雷，等. SACI燃烧过程韦伯参数的计算方法［J］. 华中科技大学学报：自然科学版， 2017， 45（6）： 6.
	SUN Y R， HU S， YANG C L， et al. Approaches of Wiebe parameter determination in SACI combustion processes ［J］. Journal of Huazhong University of Science and Technology： Natural Science Edition， 2017， 45（6）： 6.
16	YANG X， ZHU G G. A two-zone control oriented SI-HCCI hybrid combustion model for the HIL engine simulation ［C］. American Control Conference， 2011.
17	SALERNO F， BARGENDE M， KULZER A C， et al. A quasi-dimensional burn rate model for spark-assisted compression ignition （SACI） combustion ［C］. SAE Paper 2022-24-0039.
18	解茂昭，贾明. 内燃机计算燃烧学［M］. 北京：科学出版社， 2016.
	XIE M Z， JIA M. Computational combustion science for internal combustion engine ［M］. Beijing： Science Press， 2016.
19	HEYWOOD J B. Internal combustion engine fundamentals ［M］. New York： McGraw-Hill， 1988.
20	JIANG H F， WANG J X， SHUAI S J. Visualization and performance analysis of gasoline homogeneous charge induced ignition by diesel ［C］. SAE Paper 2005-01-0136.
21	ZHAO H， PENG Z， WILLIAMS J， et al. Understanding the effects of recycled burnt gases on the controlled autoignition （CAI） combustion in four-stroke gasoline engines ［C］. SAE Paper 2001-01-3607.

发动机型号	ZR180
燃烧室	ω型
缸径/冲程	80 mm/80 mm
排量	0.402 L
压缩比	17.0∶1
喷射方式	气道喷射

项目	第1组	第2组
转速/（r·min^-1）	1 200	1 200
喷油量/（kg·h^-1）	0.45	0.45
Lambda	1.6	1.0
进气温度/℃	120	145
水温/℃	80	80
外部EGR率	0	0.25/0.30
点火时刻/（°CA BTDC）	18， 23， 27， 31	30， 35， 40， 45

火花辅助压燃准维燃烧模型的建立及应用

Development and Application of A Spark-Assisted Compression Ignition Quasi-Dimensional Combustion Model

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 15

参考文献 21

相关文章 0

Metrics

本文评价

推荐阅读 10