点火提前角对天然气转子发动机燃烧过程的影响

doi:10.3969/j.issn.1000-1093.2014.01.001

兵工学报 ›› 2014, Vol. 35 ›› Issue (1): 1-8.doi: 10.3969/j.issn.1000-1093.2014.01.001

• 论文 • 下一篇

点火提前角对天然气转子发动机燃烧过程的影响

范宝伟，潘剑锋，陈瑞，刘杨先，唐爱坤，王谦

（江苏大学能源与动力学院, 江苏镇江 212013）

收稿日期:2012-11-14 修回日期:2012-11-14 上线日期:2014-03-18
作者简介:范宝伟（1987—），男，博士研究生
基金资助:
国家自然科学基金项目（50706016）；江苏省六大人才高峰第八批项目(装备制造201127)；江苏省高校优势学科建设工程项目（2012年）；江苏省普通高校研究生科研创新计划项目（CXZZ13-0671）

Effect of Ignition Advance Angles on Combustion Process in Natural Gas-fueled Rotary Engine

FAN Bao-wei, PAN Jian-feng , CHEN Rui, LIU Yang-xian, TANG Ai-kun, WANG Qian

(School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China)

Received:2012-11-14 Revised:2012-11-14 Online:2014-03-18

摘要/Abstract

摘要： 以火花点燃式转子发动机为研究对象，建立了相应的湍流和燃烧模型，实现了发动机工作过程的动态模拟。在此基础上，计算得到了转子发动机缸内流场、温度场的演变及火焰传播过程，并计算分析出了不同点火提前角对缸内燃烧过程的影响。计算结果表明：燃烧室内部涡流对火焰传播起着积极的加速作用，点火时火花塞位于涡流区到单向流的过渡区域最好。随着转子运动，涡流会因燃烧室容积减小而受到挤压并消失，在涡流消失时刻一定的情况下，为了充分利用涡流的作用时间，应该适当地增大点火提前角。在计算工况下，当点火提前角为47°时，发动机的燃烧效率和气缸内压力峰值均最高，并且NO_x的排放较少。此研究为其他不同工况下，转子发动机的最佳点火提前角的确定提供了理论参考依据。

关键词: 工程热物理, 天然气转子发动机, 点火提前角, 燃烧过程, 二维动态模拟

Abstract: The calculation models of combustion and turbulent flow are established for a spark-ignition rotary engine in order to realize dynamic simulation of operating process of natural gas-fueled rotary engine. The evolution processes of flow and temperature fields and the propagation process of flame in cylinder are obtained by numerical simulation, and the effects of different ignition advance angles on the flame propagation are analyzed under the same ignition. The results show that the eddy in cylinder can largely accelerate the flame propagation speed. When the spark plug begins to ignite, it is best to be located at the transition region between eddy zone and unidirectional flow. With the motion of rotor, the eddy is extruded and disappears because the volume of combustion chamber decreases. The ignition advance angle should be appropriately increased for making full use of the eddy action time under the constant eddy disappearance moment condition. Under the computational conditions, when the ignition advance angle is 47°, the combustion efficiency and the peak pressure in the cylinder are the highest, and the lower NO_x exhaust is also taken into consideration. This study provides some theoretical guidance for the determination of best ignition advance angles under different working conditions.

Key words: engineering thermophysics, natural gas-fueledrotary engine, ignition advance angle, combustion process, two-dimension dynamic simulation

中图分类号:

TK45

范宝伟，潘剑锋，陈瑞，刘杨先，唐爱坤，王谦. 点火提前角对天然气转子发动机燃烧过程的影响[J]. 兵工学报, 2014, 35(1): 1-8.

FAN Bao-wei, PAN Jian-feng , CHEN Rui, LIU Yang-xian, TANG Ai-kun, WANG Qian. Effect of Ignition Advance Angles on Combustion Process in Natural Gas-fueled Rotary Engine[J]. Acta Armamentarii, 2014, 35(1): 1-8.

参考文献

［1］王奉明，程卫华. 转子发动机简介[J].现代军事，2006（11）:
59-61.
WANG Feng-ming, CHENG Wei-hua. Introduction of rotary engines[J]. Modern Military,2006（11）:59-61. (in Chinese)
[2］卢发，余乃彪. 三角转子发动机[M].北京：国防工业出版社，1990.
LU Fa, YU Nai-biao. Wankel engine[M].Beijing: National Defense Industry Press,1990. (in Chinese)
[3］朱剑明，彭代勇.世界能源现状与内燃机的发展机遇[J].内燃机工程，2011，32（2）:80-84.
ZHU Jian-ming, PENG Dai-yong. Current world oil situation and development opportunities for IC engine[J].Chinese Internal Combustion Engine Engineering,2011， 32（2）:80-84. (in Chinese)
[4］ Abraham J, Bracco F V. Comparisons of computed and measured pressure in a premixed-charge natural-gas-fueled rotary engine[J]. SAE Transactions, 1989,98:117-131.
[5］马凡华, 王宇, 汪俊君，等.不同点火提前角时HCNG发动机的燃烧与排放特性[J]. 内燃机工程,2008,29(4):23-27.
MA Fan-hua, WANG Yu, WANG Jun-jun， et al. Combustion and emission characteristics of a HCNG engine under various spark timings[J]. Chinese Internal Combustion Engine Engineering, 2008,29(4):23-27. (in Chinese)
[6］潘剑锋, 范宝伟, 陈瑞, 等. 点火位置对天然气转子发动机燃烧的影响[J]. 内燃机工程，2013, 34(1): 1-7.
PAN Jian-feng, FAN Bao-wei, CHEN Rui, et al. Effects of ignition position on combustion process in natural gas-fueled rotary engine[J]. Chinese Internal Combustion Engine Engineering, 2013， 34(1): 1-7. (in Chinese)
[7］ Abraham J, Bracco F V. 3D computation of premixed-charge natural gas combustion in rotary engines[J].SAE Technical,1991,100(4):611-617.
[8］ Abraham J, Bracco F V. Comparisons of computed and measured mean velocity and turbulence intensity in a motored rotary engine[J]. SAE Transactions, 1989, 97(9): 1701-1713.
[9］李晓春，潘剑锋，李德桃，等.亚毫米平行板通道内燃烧过程的数值模拟[J].小型内燃机与摩托车， 2010, 39(3): 33-39.
LI Xiao-chun, PAN Jian-feng, LI Dei-tao, et al. Numerical simulation of the combustion process in the parallel plated combustor under one millimeter[J].Small Internal Combustion Engine and Motorcycle, 2010，39(3):33-39. (in Chinese）
[10］ De Filippis M, Hamady F, Novak M, et al. Effects of pocket configuration on the flow field in a rotary engine assembly[J]. SAE Transactions, 1992, 101(3): 427-441.

[1]	梁志豪, 巫江虹, 金鹏, 李会喜. 电动汽车热泵空调系统结霜特性及除霜策略[J]. 兵工学报, 2017, 38(1): 168-176.
[2]	叶宏，张海涛. 周期性环境条件下围护结构热物性对系统能耗及目标热控效果的影响[J]. 兵工学报, 2015, 36(9): 1710-1721.
[3]	石智成, 刘昊, 张红光, 卢海涛. 基于快速压缩机的二甲醚燃烧特性研究[J]. 兵工学报, 2015, 36(7): 1340-1346.
[4]	巫江虹，李会喜，游少芳. 热泵热水器外盘微通道冷凝器与外盘铜管冷凝器特性比较[J]. 兵工学报, 2015, 36(6): 1147-1152.
[5]	侯普秀，刘超鹏，巫江虹. 旋转式室温磁制冷回热器二维多孔介质模型仿真[J]. 兵工学报, 2015, 36(5): 938-945.
[6]	王燕鹏，王忠，张登攀，居钰生，张永铭. 过量空气系数和点火正时对M100甲醇发动机性能影响研究[J]. 兵工学报, 2015, 36(12): 2358-2362.
[7]	刘焜，余永刚，赵娜. 某空气雾化旋流喷嘴在受限空间内雾化特性的实验研究[J]. 兵工学报, 2015, 36(10): 1882-1887.
[8]	马小康，张付军，韩恺，章振宇. 进气氧浓度对柴油机燃烧过程影响的仿真研究[J]. 兵工学报, 2014, 35(7): 945-952.
[9]	李仁春，王忠，袁银男，张登攀，李铭迪. 柴油/甲醇不同掺烧方式燃烧过程和排放对比分析[J]. 兵工学报, 2014, 35(3): 403-408.
[10]	刘昊，张红光，赵光耀，白小磊，王震，孙娜. 应用隔板式定容燃烧弹的甲烷-空气混合气射流引燃研究[J]. 兵工学报, 2014, 35(10): 1667-1673.
[11]	张琦，余永刚，刘东尧，陆欣. 脉冲等离子射流与液体工质相互作用特性实验研究及数值模拟[J]. 兵工学报, 2012, 33(5): 518-524.
[12]	王艳峰，胡欲立，孟生，王朋. 某型水下航行器电池舱段热过程CFD分析[J]. 兵工学报, 2012, 33(4): 476-482.
[13]	高荣刚，李国岫，虞育松，李洪萌. 高原环境对柴油机燃烧过程影响的仿真研究[J]. 兵工学报, 2012, 33(12): 1448-1454.
[14]	虞育松，李国岫，张晶，袁野. 高速直喷柴油机燃烧系统参数对燃烧性能影响的权重分析[J]. 兵工学报, 2012, 33(12): 1416-1422.

点火提前角对天然气转子发动机燃烧过程的影响

Effect of Ignition Advance Angles on Combustion Process in Natural Gas-fueled Rotary Engine

PDF

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 14

编辑推荐

Metrics

本文评价