低频交流电场对甲烷/空气预混火焰影响的机理研究

何子奇; 高忠权; 贾伟东; 孟浩; 杨猛; 邓宇

doi:10.7652/xjtuxb201811007

您当前的位置：

首页 >

文章列表页 >

低频交流电场对甲烷/空气预混火焰影响的机理研究

更新时间：2025-07-09

- 低频交流电场对甲烷/空气预混火焰影响的机理研究
- Mechanism Analysis on the Effect of Low-Frequency AC Electric Field on CH₄/Air Premixed Flame
- 西安交通大学学报 2018年52卷第11期页码：45-50+141
- 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：
  
  : 2018-03-01。作者简介: 何子奇(1994—),男,硕士生;高忠权(通信作者),男,副教授。基金项目: 国家自然科学基金资助项目(51306143);中央高校基本科研业务费专项资金资助项目(xjj2018174)
- DOI：10.7652/xjtuxb201811007
  中图分类号： TK431
- 网络首发：2018-11-10，
  
  纸质出版：2018
- 稿件说明：
移动端阅览
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[J]. 西安交通大学学报, 2018,52(11):45-50+141.

Mechanism Analysis on the Effect of Low-Frequency AC Electric Field on CH₄/Air Premixed Flame[J]. 2018, 52(11): 45-50+141. DOI: 10.7652/xjtuxb201811007.
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[J]. 西安交通大学学报, 2018,52(11):45-50+141. DOI： 10.7652/xjtuxb201811007.

Mechanism Analysis on the Effect of Low-Frequency AC Electric Field on CH₄/Air Premixed Flame[J]. 2018, 52(11): 45-50+141. DOI: 10.7652/xjtuxb201811007. DOI：

摘要

为了明确低频交流电场对火焰的作用机理

在常温、初始压力0.3 MPa下

施加电压有效值为5 kV、频率f=40

100 Hz的电场对甲烷/空气混合气的燃烧特性进行研究

建立了预混甲烷/空气火焰离子反应模型

对燃烧过程各粒子的浓度变化进行模拟

将实验与模拟结果综合进行了分析。结果表明:加载低频交流电场后

预混球形火焰在横向发生明显形变

随着频率的增大

平均火焰传播速度(-overS)

和压力峰值P

max

均逐渐减小; 模拟计算表明随着频率的增大

双离子风发展程度ξ

eff

逐渐减小

平均火焰传播速度增大率Δ(-overS)

和压力峰值增大率ΔP

max

与双离子风发展程度ξ

eff

的线性拟合相关系数分别为0.995 82和0.919 96

eff

与电场对火焰的促进作用密切相关; 电场下火焰前锋面粒子间的碰撞作用程度与火焰的宏观拉伸形变之间存在着直接联系

基于碰撞作用的双离子风效应是低频交流电场对预混火焰的主要促进因素。

Abstract

The alternating electric field can promote flame combustion

and research shows that the promotion effect of low-frequency AC electric field on premixed flame is mainly based on the collision between particles in the flame. In order to further explore the effect mechanism of the particles in the flame under electric field

premixed methane/air flame ionization model was established to obtain the concentration distribution of the particles in the combustion process and calculate the developing degree of bi-ionic wind. Simulation results were compared with the experimental data. The results showed tha

t the spherically flame was horizontally stretched obviously when low-frequency AC field was applied. As the frequency increases

the average flame propagation velocity (-overS)

and pressure peak P

max

decrease gradually. Simulation results also showed that the developing degree of bi-ionic wind ξ

eff

decreases with the frequency

and the correlation coefficients of linear fitting of the average flame propagation velocity Δ(-overS)

and the pressure peak increase rate ΔP

max

with the developing degree of bi-ionic wind ξ

eff

are 0.995 82 and 0.919 96

respectively. The parameter ξ

eff

is closely related to the promotion of flame by the electric field. There is a direct relationship between the collisions of particles in the flame front and the macroscopic stretch of the flame under the applied electric field. The bi-ionic wind effect based on the particles collision is the primary promotion of the low-frequency AC electric field on the premixed flame.

关键词

Keywords

references

MIN S C, LEE Y. Premixed combustion under electric field in a constant volume chamber [J]. IEEE Transactions on Plasma Science, 2012, 40(12): 3131-3138.

PARK D G, CHOI B C, CHA M S, et al. Soot reduction under DC electric fields in counter-flow non-premixed laminar ethylene flames [J]. Combustion Science and Technology, 2014, 186(4/5): 644-656.

ZHANG Y, WU Y, YANG H, et al. Effect of high-frequency alternating electric fields on the behavior and nitric oxide emission of laminar non-premixed flames [J]. Fuel, 2013, 109: 350-355.

KIM M 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 and Flame, 2012, 159(3): 1151-1159.

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.

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

HUANG Z, ZHANG Y, ZENG K, et al. Measurements of laminar burning velocities for natural gas-hydrogen-air mixtures [J]. Combust Flame, 2006, 146: 302-311.

ALQUAITY A B S, HAN J, CHAHINE M, et al. Measurements of positively charged ions in premixed methane-oxygen atmospheric flames [J]. Combustion Science Technology, 2016, 189(4): 575-594.

GOODINGS J, BOHME D, NG C W. Detailed ion chemistry in methane-oxygen flames: I Positive ions [J]. Combustion and Flame, 1979, 36: 27-43.

孟祥文, 杨星, 康婵, 等. 直流电场对预混CH4/O2/N2火焰传播特性影响的试验研究 [J]. 西安交通大学学报, 2013, 47(7): 13-17.

MENG Xiangwen, YANG Xing, KANG Chan, et al. Effect of direct-current electric field on flame propagation characteristics of premixed CH4/O2/N2 flames [J]. Journal of Xi'an Jiaotong University, 2013, 47(7): 13-17.

HAYHURST A N, GOODINGS J M, TAYLOR S G. The effects of applying electric fields on the mass spectrometric sampling of positive and negative ions from a flame at atmospheric pressure [J]. Combustion Flame, 2014, 161(12): 3249-3262.

JONES H R N, HAYHURST A N. Measurements of the concentrations of positive and negative ions along premixed fuel-rich flames of methane and oxygen [J]. Combustion Flame, 2016, 166: 86-97.

KIM M K, CHUNG S H, KIM H H. Effect of AC electric fields on the stabilization of premixed Bunsen flames [J]. Proceedings of the Combustion Institute, 2011, 33(1): 1137-1144.

KONO M, CARLETON F B, JONES A R, et al. The effect of non-steady electric fields on sooting flames [J]. Combust Flame, 1989, 78(3/4): 357-364.

李超, 张聪, 吴筱敏, 等. 交流电场气动效应对球形传播火焰影响的数值研究 [J]. 西安交通大学学报, 2015, 49(11): 20-25.

LI Chao, ZHANG Cong, WU Xiaomin, et al. Numerical simulation for AC electric aerodynamic effect on spherically expanding flame [J]. Journal of Xi'an Jiaotong University, 2015, 49(11): 20-25.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

高初始压力下交流电场对甲烷/空气预混球形火焰燃烧特性的影响

张角凹坑气膜孔对双层壁气膜冷却特性的影响

水蒸气掺混对氨裂解气旋流燃烧与排放特性的影响研究

面向高海拔空冷发电机防晕性能演化规律的电热耦合研究

结构-语义-残差协同的图像压缩框架：面向隐私保护与高保真重建