二甲醚和柴油高压喷射喷雾与燃烧可视化对比研究

赵鹏云; 陈占明; 王涛; 张海涛; 王小琛; 陈朝阳; 陈昊; 耿莉敏

doi:10.7652/xjtuxb202306017

您当前的位置：

首页 >

文章列表页 >

二甲醚和柴油高压喷射喷雾与燃烧可视化对比研究

—————————————————————— | 更新时间：2025-05-08

- 二甲醚和柴油高压喷射喷雾与燃烧可视化对比研究
- A Comparative Study of Visual Spray and Combustion Characteristics of DimethylEther and Diesel under High Pressure
- 西安交通大学学报 2023年57卷第6期页码：152-159
- 作者机构：
  
  长安大学能源与电气工程学院,西安,710018
- 作者简介：
  
  : 2023-01-07。作者简介: 赵鹏云(2000—),男,硕士生
  陈占明(通信作者),男,副教授。基金项目: 国家
- 基金信息：
  
  : 2023-01-07。作者简介: 赵鹏云(2000—),男,硕士生;陈占明(通信作者),男,副教授。基金项目: 国家
- DOI：10.7652/xjtuxb202306017
  中图分类号： TK40
- 网络首发：2023-06-10，
  
  纸质出版：2023
- 稿件说明：
移动端阅览
赵鹏云, 陈占明, 王涛, 等. 二甲醚和柴油高压喷射喷雾与燃烧可视化对比研究[J]. 西安交通大学学报, 2023,57(6):152-159.

ZHAO Pengyun, CHEN Zhanming, WANG Tao, et al. A Comparative Study of Visual Spray and Combustion Characteristics of DimethylEther and Diesel under High Pressure[J]. 2023, 57(6): 152-159.
赵鹏云, 陈占明, 王涛, 等. 二甲醚和柴油高压喷射喷雾与燃烧可视化对比研究[J]. 西安交通大学学报, 2023,57(6):152-159. DOI： 10.7652/xjtuxb202306017.

ZHAO Pengyun, CHEN Zhanming, WANG Tao, et al. A Comparative Study of Visual Spray and Combustion Characteristics of DimethylEther and Diesel under High Pressure[J]. 2023, 57(6): 152-159. DOI： 10.7652/xjtuxb202306017.

摘要

为明晰高压喷射条件二甲醚闪急沸腾状态下的喷雾形态、自着火和火焰发展特性

通过高温高压定容燃烧弹

利用高速相机基于纹影法对比研究了柴油和二甲醚的喷雾和燃烧特性。实验中将喷射压力设置为60、100 MPa

环境背压设置为4 MPa

在喷雾、燃烧条件下环境温度分别设置为400、800 K。研究结果表明:同工况下二甲醚的喷雾贯穿距和喷雾面积均小于柴油

但其喷雾锥角大于柴油

雾化时间短于柴油

雾化效果优于柴油。随着喷射压力的提高

二甲醚与柴油的贯穿距和喷雾面积都增大

100 MPa喷射压力下二甲醚喷雾面积较60 MPa增大18.18%

而同工况下柴油增大23.5%。相比于柴油

二甲醚燃烧滞燃期和火焰浮起长度较短

燃烧持续期与柴油相当

但二甲醚燃烧火焰亮度、火焰面积和碳烟生成量明显低于柴油。随着喷射压力的提高

柴油与二甲醚的碳烟生成量均降低

但二甲醚的碳烟生成量降低效果更加显著

该文碳烟生成量用体积分数KL因子总和来表示

发现100 MPa喷射压力下的二甲醚KL总和较60 MPa减小33.3%

而同工况下柴油减小19.32%。

Abstract

To clarify the spray

auto-ignition and flame development characteristics of dimethyl ether under flash boiling condition of high pressure injection

the spray and combustion characteristics of diesel and dimethyl ether were studied comparatively by using a constant volume vessel and the schlieren method. During the experiment

the injection pressure was 60 MPa and 100 MPa

the ambient pressure was 4 MPa

and the ambient temperature was 400 K and 800 K under spray and combustion conditions respectively. The results showed that the penetration distance and spray area of dimethyl ether were smaller than those of diesel

but the spray angle was larger than that of diesel

the atomization time was shorter than that of diesel

and the atomization was better than that of diesel. With the increase of injection pressure

the penetration distance and spray area of both dimethyl ether and diesel increased. The spray area of dimethyl ether under 100 MPa injection pressure increased by 18.18% compared with 60 MPa

while that of diesel under the same condition increased by 23.5%. Compared with diesel

the ignition delay and flame lift-off length of dimethyl ether were shorter

and the combustion duration was similar

but the flame brightness

flame area

and soot of dimethyl ether were lower significantly. With the increase of injection pressure

the soot of diesel and dimethyl ether decreased

but the soot of dimethyl ether decreased much more significantly. For example

the KL sum of dimethyl ether under 100 MPa injection pressure decreased by 33.3% compared with 60 MPa

while that of diesel under the same working condition decreased by 19.32%.

关键词

Keywords

references

MATZEN M, DEMIREL Y. Methanol and dimethyl ether from renewable hydrogen and carbon dioxide: alternative fuels production and life-cycle assessment [J]. Journal of Cleaner Production, 2016, 139: 1068-1077.

PARK S H, LEE C S. Combustion performance and emission reduction characteristics of automotive DME engine system [J]. Progress in Energy and Combustion Science, 2013, 39(1): 147-168.

PUTRASARI Y, LIM O. Dimethyl ether as the next generation fuel to control nitrogen oxides and particulate matter emissions from internal combustion engines: a review [J]. ACS Omega, 2022, 7(1): 32-37.

王贺武, 周龙保. 二甲醚喷雾特性的研究 [J]. 西安交通大学学报, 2001, 35(9): 918-921.WANG Hewu, ZHOU Longbao. Study on spray characteristics of dimethyl ether [J]. Journal of Xi'an Jiaotong University, 2001, 35(9): 918-921.

王理堃, 张光德, 三次勇太, 等. 模拟发动机工况下二甲醚喷雾燃烧实验及仿真研究 [J]. 武汉科技大学学报, 2018, 41(1): 70-74.WANG Likun, ZHANG Guangde, MITSUGI Y, et al. Experiment and simulation of dimethyl ether spray combustion in engine-like conditions [J]. Journal of Wuhan University of Science and Technology, 2018, 41(1): 70-74.

PARK S H, KIM H J, LEE C S. Macroscopic spray characteristics and breakup performance of dimethyl ether(DME)fuel at high fuel temperatures and ambient conditions [J]. Fuel, 2010, 89(10): 3001-3011.

SUH H K, PARK S W, LEE C S. Atomization characteristics of dimethyl ether fuel as an alternative fuel injected through a common-rail injection system [J]. Energy & Fuels, 2006, 20(4): 1471-1481.

KIM H J, PARK S H, SUH H K, et al. Atomization and evaporation characteristics of biodiesel and dimethyl ether compared to diesel fuel in a high-pressure injection system [J]. Energy & Fuels, 2009, 23(3): 1734-1742.

CUNG K D, MOIZ A A, ZHU Xiucheng, et al. Ignition process and flame lift-off characteristics of dimethyl ether(DME)reacting spray [J]. Frontiers in Mechanical Engineering, 2021, 7: 547204.

孙哲, 崔明利, 王鸿雨, 等. 低速稀薄燃烧工况下闪沸喷雾燃烧特性 [J]. 燃烧科学与技术, 2021, 27(4): 376-381.SUN Zhe, CUI Mingli, WANG Hongyu, et al. Combustion characteristics of flash-boiling spray under low-speed lean burn conditions [J]. Journal of Combustion Science and Technology, 2021, 27(4): 376-381.

MOHAN B, YANG Wenming, YU Wenbin, et al. Numerical analysis of spray characteristics of dimethyl ether and diethyl ether fuel [J]. Applied Energy, 2017, 185: 1403-1410.

田辛. 用双色法研究内燃机燃烧火焰的温度场及碳烟浓度场 [D]. 北京: 清华大学, 2004.

XU Sidu, YAO Mingfa, XU Junfeng. An experimental investigation on the spray characteristics of dimethyl ether(DME)[C]//SAE 2001 World Congress. Warrendale, PA, USA: SAE International, 2001: 2001-01-0142.

衡思江. 小型航空发动机气动雾化喷嘴雾化特性研究 [D]. 北京: 中国科学院大学, 2015.

张新赟. 柴油/PODE3-4混合燃料的喷雾气液两相特性研究 [D]. 南宁: 广西大学, 2018.

李睿宸, 陈朝阳, 姚晓新, 等. Polymethoxy Dimethyl Ether/汽油混合燃料喷雾特性实验研究 [J]. 西安交通大学学报, 2021, 55(7): 179-185.LI Ruichen, CHEN Zhaoyang, YAO Xiaoxin, et al. Experimental study on spray characteristics of Polymethoxy Dimethyl Ether and gasoline blended fuel [J]. Journal of Xi'an Jiaotong University, 2021, 55(7): 179-185.

董全, 任晓光, 宋恩哲, 等. 基于纹影法的高压柴油喷雾反射激波特性 [J]. 内燃机学报, 2020, 38(2): 97-103.DONG Quan, REN Xiaoguang, SONG Enzhe, et al. Reflection shockwave characteristics of high pressure diesel spray based on schlieren method [J]. Transactions of CSICE, 2020, 38(2): 97-103.

曾繁鸣. 二甲醚喷雾实验研究及液滴蒸发数值模拟 [D]. 北京: 北京理工大学, 2018.

王龙, 刘永峰, 毕贵军, 等. 柴油表征燃料在高浓度CO2氛围下燃烧机理的分析 [J]. 环境科学学报, 2021, 41(11): 4477-4488.WANG Long, LIU Yongfeng, BI Guijun, et al. Analysis of the combustion mechanism of diesel surrogate fuel under high-CO2 atmosphere [J]. Acta Scientiae Circumstantiae, 2021, 41(11): 4477-4488.

易文韬, 丰雷, 王煜, 等. 稀释气体组分和浓度对柴油喷雾燃烧特征影响 [J]. 内燃机学报, 2021, 39(1): 1-10.YI Wentao, FENG Lei, WANG Yu, et al. Effects of oxygen and buffer gas concentration on diesel spray flame characteristics [J]. Transactions of CSICE, 2021, 39(1): 1-10.

李峻辉. 容弹与光学发动机中柴油乙醇环戊醇混合物喷雾和燃烧特性的可视化研究 [D]. 西安: 长安大学, 2020.

周成龙. 柴油/环戊醇混合燃料喷雾与燃烧特性的可视化研究 [D]. 西安: 长安大学, 2020.

张雨新. 船用低速柴油机燃烧特性可视化实验研究 [D]. 大连: 大连理工大学, 2021.

钟汶君. 二代生物柴油喷雾燃烧特性和碳烟生成过程可视化研究 [D]. 镇江: 江苏大学, 2016.

钟汶君, 袁起飞, 相启龙, 等. 戊醇/正十二烷二元燃料碳烟生成特性实验研究 [J]. 内燃机工程, 2022, 43(2): 20-29.ZHONG Wenjun, YUAN Qifei, XIANG Qilong, et al. Experimental study on soot formation characteristics of pentanol/N-dodecane blends [J]. Chinese Internal Combustion Engine Engineering, 2022, 43(2): 20-29.

付雪青, 何邦全, 徐思鹏, 等. 二甲醚微火焰引燃高稀释汽油混合气燃烧和排放特性 [J]. 汽车安全与节能学报, 2021, 12(4): 580-586.FU Xueqing, HE Bangquan, XU Sipeng, et al. Combustion and emissions characteristics of highly diluted gasoline mixture ignited by DME enabled micro-flame [J]. Journal of Automotive Safety and Energy, 2021, 12(4): 580-586.

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

二甲醚中巴客车生命周期分析研究

二甲醚层流预混双火焰㶲损特性分析

喷孔直径对高压喷射喷嘴内甲醇流动及喷雾瞬态特性影响的可视化试验研究

甲醇多次喷射对直喷射流点火发动机燃烧特性的影响

喷嘴内流影响下的喷油器性能参数敏感性分析