Experimental Study and Mechanism Analysis on the Influence of Dilution Gas on Ion Current

doi:10.7652/xjtuxb201901019

您当前的位置：

首页 >

文章列表页 >

Experimental Study and Mechanism Analysis on the Influence of Dilution Gas on Ion Current

更新时间：2025-07-09

- Experimental Study and Mechanism Analysis on the Influence of Dilution Gas on Ion Current
- Vol. 53, Issue 1, Pages: 142-149(2019)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201901019
  CLC： TK431
- Online First：10 January 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
Experimental Study and Mechanism Analysis on the Influence of Dilution Gas on Ion Current[J]. 2019, 53(1): 142-149.
DOI：

Experimental Study and Mechanism Analysis on the Influence of Dilution Gas on Ion Current[J]. 2019, 53(1): 142-149. DOI： 10.7652/xjtuxb201901019.

摘要

针对稀释气体影响离子电流前锋区特征峰的研究比较缺乏

以甲烷/空气/稀释气体为对象

通过在定容燃烧弹内布置离子电流测量电极

获得了稀释气种类N

/CO

/Ar和0%、5%、10%、15%几种不同稀释比条件下离子电流的特征峰值

结合CHEMKIN化学反应动力学数值模拟结果

分析了主导离子电流前锋区信号生成的带电组分的数密度、敏感性系数及其生成路径。试验结果表明:相同的稀释比下

稀释对离子电流信号的抑制作用最大; 在不同的稀释气体种类下

离子电流前锋区峰值均在过量空气系数λ为0.95时达到最大。数值计算结果表明

对离子电流前锋区信号贡献最大的组分是H

和电子e

链分支反应R38、链终止反应R52和离子化初始反应R326对这两种组分浓度的影响较大。在过量空气系数λ为0.95时

O和CH数密度都较大且反应区温度最高

导致化学离子化程度最大

离子电流值前锋区峰值也达到最大值。该结论为研究稀释气体对燃料燃烧的离子电流信号影响和火焰锋面电学特性提供了一定的机理支撑。

Abstract

To explore the influence of dilution gases on the characteristic peaks of the flame front ion current

methane-air-dilution gases were selected as the objects

and the characteristic peak values of ion current under dilution gases(N

/Ar/CO

)and different dilution ratios(0%

10% and 15%)were obtained by arranging electrodes in the constant volume combustion bomb. The number densities

sensitivity coefficients and generation paths of the dominant charged species affecting flame front ion current signals were analyzed by CHEMKIN chemical reaction numerical simulation. The experimental results sh

ow that there is the greatest inhibitory effect on ion current signal under the condition of CO

dilution. The flame front ion current peak reaches its maximum values when excess air coefficient λ is equal to 0.95 under the condition of different dilution gases. The numerical results indicate that the species which contribute most to the flame front ion current signal are H

and electron. The chain branching reaction R38

the chain termination reaction R52 and the ionization initial reaction R326 have greater influences on the concentration of the two species. When λ is equal to 0.95

the number densities of O and CH radicals and the reaction zone temperature are the highest

resulting in the largest degree of chemical ionization

and the flame front ion current peak value also reaches its maximum. The conclusions of this paper provide a support for the study of the effects of dilution gas on the ion current signal in fuel combustion and the electrical characteristics of the flame front.

关键词

Keywords

references

GAO Z, WU X, HUANG Z, et al. The interdependency between the maximal pressure and ion current in a spark-ignition engine [J]. International Journal of Engine Research, 2013, 14(4): 320-332.

LI F, XU L, DU M, et al. Ion current sensing-based lean blowout detection for a pulse combustor [J]. Combustion Flame, 2017, 176(2): 263-271.

HELLRING M, MUNTHER T, ROGNVALDSSON T, et al. Spark advance control using the ion current and neural soft sensors [J]. SAE Transactions, 1999, 108(1): 1590-1595.

GAO Z, LIU B, GAO H, et al. The correlation between the cylinder pressure and the ion current fitted with a Gaussian algorithm for a spark ignition engine fuelled with natural-gas-hydrogen blends [J]. Proceedings of the Institution of Mechanical Engineers: Part D Journal of Automobile Engineering, 2014, 228(12): 1480-1490.

HELLRING M, MUNTHER T, ROGNVALDSSON T, et al. Robust AFR estimation using the ion current and neural networks [J]. Journal of Evaluation in Clinical Practice, 1999, 9(2): 195-202.

RAO R, HONNERY D. The prediction of torque in a diesel engine using ion currents and artificial neural networks [J]. International Journal of Engine Research, 2014, 15(3): 370-380.

REINMANN R, SAITZKO A, MAUSS F, et al. Local air-fuel ratio measurements using the spark plug as an ionization sensor [R]. Detroit, USA: SAE, 1997: 970856.

刘兵, 李春艳, 孙天旗, 等. 离子电流法测量CH4/H2混合气燃烧火焰传播速度的实验研究 [J]. 西安交通大学学报, 2015, 49(1): 40-45.

LIU Bing, LI Chunyan, SUN Tianqi, et al. Ion current method for measuring flame propagation velocity of CH4/H2 mixture combustion [J]. Journal of Xi'an Jiaotong University, 2015, 49(1): 40-45.

高忠权, 刘兵, 李春艳, 等. 采用离子电流法测量火焰厚度的研究 [J]. 燃烧科学与技术, 2015, 21(3): 203-208.

GAO Zhongquan, LIU Bing, LI Chunyan, et al. Study on measurement of flame thickness by ion current method [J]. Journal of Combustion Science and Technology, 2015, 21(3): 203-208.

MIN K K, CHUNG S H, KIM H H. Effect of electric fields on the stabilization of premixed laminar bunsen flames at low AC frequency: Bi-ionic wind effect [J]. Combustion Flame, 2012,159(3): 1151-1159.

FANG J, WU X, DUAN H, et al. Effects of electric fields on the combustion characteristics of lean burn methane-air mixtures [J]. Energies, 2015, 8(4): 2587-2605.

GREEN J A, SUGDEN T M. Some observations on the mechanism of ionization in flames containing hydrocarbons [J]. Symposium on Combustion, 1963, 9(1): 607-621.

PEDERSEN T, BROWN R C. Simulation of electric field effects in premixed methane flames [J]. Combustion Flame, 1993, 94(4): 433-448.

PRAGER J, RIEDEL U, WARNATZ J. Modeling ion chemistry and charged species diffusion in lean methane-oxygen flames [J]. Proceedings of the Combustion Institute, 2007, 31(1): 1129-1137.

SMITH G P, GOLDEN D M, FRENKLACH M, et al. GRI Mech 3.0 [EB/OL]. [2018-02-16]. http: ∥www.me. berkeley.edu/gri_mech/.

BISETTI F, MORSLI M E. Calculation and analysis of the mobility and diffusion coefficient of thermal electrons in methane/air premixed flames [J]. Combustion Flame, 2012, 159(12): 3518-3521.

MASON E A, MCDANIEL E W. Transport properties of ions in gases [M]. New York, USA: Wiley-Interscience, 1988: 221-224.

HAN J, BELHI M, BISETTI F, et al. Numerical modelling of ion transport in flames [J]. Combustion Theory Modelling, 2015, 19(6): 744-772.

CANCIAN J, BENNETT B A V, COLKET M B, et al. Prediction of electron and ion concentrations in low-pressure premixed acetylene and ethylene flames [J]. Combustion Theory Modelling, 2013, 17(2): 294-315.

BECHTEL J H, BLINT R J, DASCH C J, et al. Atmospheric pressure premixed hydrocarbon-air flames: theory and experiment [J]. Combustion Flame, 1981, 42(2): 197-213.

JR J W T, MCILROY A. Absolute CH radical concentrations in rich low-pressure methane-oxygen-argon flames via cavity ringdown spectroscopy of the A2Δ-X2Π transition [J]. Journal of Physical Chemistry: A, 2000, 104(104): 4953-4961.

HAN J. Numerical study of electric field enhanced combustion [D]. Jidda, Kingdom of Saudi Arabia: King Abdullah University of Science and Technology, 2016: 6.

WORTBERG G. Ion-concentration measurements in a flat flame at atmospheric pressure [J]. Symposium on Combustion, 1965, 10(1): 651-655.

SAITZKOFF A, REINMANN R, BERGLIND T, et al. An ionization equilibrium analysis of the spark plug as an ionization sensor [R]. Detroit, USA: SAE Technical Paper, 1996: 960337.

TURNS S R. 燃烧学导论: 概念与应用 [M]. 北京: 清华大学出版社, 2015: 134-136.

何子奇,高忠权,贾伟东,等.低频交流电场对甲烷/空气预混火焰影响的机理研究.2018,52(11):45-50.[doi:10.7652/xjtuxb201811007]

魏旭星,贾伟东,侯俊才,等.正/负电场对预混稀燃火焰影响的对比研究.2017,51(9):39-43.[doi:10.7652/xjtuxb2017 09006]

侯俊才,魏旭星,段浩,等.交流电场对高压下甲烷/空气预混稀燃火焰的影响.2017,51(1):31-37.[doi:10.7652/xjtuxb 201701006]

崔雨辰,侯俊才,吴筱敏,等.负直流及低频交流电场对预混火焰影响的实验研究.2016,50(1):131-138.[doi:10.7652/xjtuxb201601020]

郭仁飞,庄健,于德弘.用于三维形貌定量测量的调制电流式扫描离子电导显微镜.2016,50(7):83-88.[doi:10.7652/xjtuxb201607013]

张聪,侯俊才,段浩,等.交流电场电压幅值对球形火焰影响的理论研究.2015,49(11):33-38.[doi:10.7652/xjtuxb2015 11006]

高忠权,李春艳,蔺子雨,等.采用离子电流法的甲醇发动机失火诊断.2015,49(11):44-48.[doi:10.7652/xjtuxb201511 008]

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Application of Blind Source Separation in Ion Current Signal Analysis of Spark Plug

Misfire Diagnosis of Methanol Engine with Ion Current Method

Diffusion Characteristics and Influencing Factors in Case of Hydrogen Leakage from Fuel Cell Vehicles Running in Tunnels

A Structure-Semantics-Residual Collaborative Image Compression Framework：Towards Privacy Protection and High-Fidelity Reconstruction

Numerical Simulation of the Energy Conversion Process in Thermoacoustic Engines with Different Stack Materials

Related Author

高辉

吴筱敏

高忠权

孟祥文

李根

黄佐华

高忠权 1

李春艳 1

Related Institution

State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University

⁰