Studies on the Particulate Formation and Emission Mechanism of Spray Combustion

喷雾燃烧颗粒形成与排放机理研究

• 批准号: 61302042
• 负责人: SOMEYA Tsuneo
• 金额: $ 10.62万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Co-operative Research (A)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61302042/
• 关键词: Diesel engines; Spray combustion; Difussion flame; Constant volume premixture combustion; Particulates; Soot; Fuel; 摩耗; 内燃機関; 拡散炎炎; すす粒子; 末燃炭化水素; レーザ計測

This study consists of 5 main research theme and was carried out systematically and synthetically to try to make clear the problem of particulates. 1. A study on the soot formation in diffusion flames and spray flames: Soot, total hydrocarbon, oxygen, and temperature in turbulent diffuion flames and partially premixed turbulent diffusion flames were measured to study the soot formation process in flames. Further, effects of fuel properities, oxygen addition to fuel and inpurity in fuel on soot formation were studies. 2. A study on the formation of particulates by Rapid Compression Machines and Engines: Engine tests using various kinds of fuels showed some fuel properties affecting particulate emission characteristics. From theoretical analysis, major additional parameters were specified. Further, in order to study the effect of combustion chamber geometry, the characteristics of particulates emission of re-entrant combustion chamber were measured. Effects of equivalence ratio, temperat … More ure and pressure on soot formation in a constant volume premixture combustion were systematically examined. 3. A study on the formation of particulates in Diesel Engines and furnaces: Effects of aromatic content and high-boiling point content on particulates were revealed. Also, the emision characteristics of the libricant, the unburnt fuel and cracking fractions in the SOF are shown. Furthermore, the formation process of polycric aromatic hydrocarbons in Diesel engine was studied. 4. Astudy on the reduction of particulates of Diesel engines: From experiments with high pressure fuel injection system and photographs of juel spray combustion, condition whic were necessary for controlling the particulates emission and promoting the oxdization of soot-clouds were studied. Further, spray characteristics of fuel-air mixture injection were measured by laser diagnostics and the reduction effect of soot emissions were studied by engine tests. 5. A study on the influence of particulates on the lublication and wear: Effects of carbons and additives in luburicating oils on the wear of cams and tappets were studied by mortoring test of a real engine. In order to measure acie dew points precisely, several dew points instruments with different detection methods were produced trially and examined. Less

本研究由5个主要研究主题组成，系统、综合地开展，试图搞清颗粒物问题。1. 扩散火焰和喷雾火焰中烟尘形成的研究：通过测量湍流扩散火焰和部分预混湍流扩散火焰中的烟尘、总烃、氧和温度，研究火焰中烟尘的形成过程。此外，还研究了燃料性质、燃料中氧的添加量和燃料纯度对烟灰形成的影响。2. 快速压缩机和发动机对颗粒形成的研究：使用各种燃料的发动机测试表明，燃料的某些特性会影响颗粒排放特性。从理论分析出发，确定了主要附加参数。此外，为了研究燃烧室几何形状的影响，对再入燃烧室的颗粒排放特性进行了测量。系统地考察了当量比、温度、压强和压力对等容预混料燃烧中烟灰生成的影响。3. 对柴油机和炉膛内颗粒物的形成进行了研究：揭示了芳香含量和高沸点含量对颗粒物的影响。同时，给出了润滑油、未燃燃料和裂解馏分的排放特性。在此基础上，对柴油机中芳烃的生成过程进行了研究。4. 柴油机微粒减排研究：从高压燃油喷射系统实验和喷雾燃烧照片出发，研究了控制微粒排放和促进烟尘氧化的必要条件。在此基础上，采用激光诊断技术测量了燃油-空气混合气喷射的喷雾特性，并通过发动机试验研究了烟尘排放的降低效果。5. 颗粒对润滑和磨损影响的研究：通过对一台发动机的监测试验，研究了润滑油中碳和添加剂对凸轮和挺杆磨损的影响。为了精确测量酸性露点，研制了几种不同检测方法的露点仪器，并进行了试验研究。少

项目成果

内田登 他: 第6回内燃機関合同シンポジウム講演論文集. 59-64 (1987)

Noboru Uchida 等人：第六届内燃机联合研讨会论文集 59-64 (1987)。

Konno, Jyunko et.al.: "Effect of Impurities in Dissolved Acetylene on Soot Formation in Diffusion Falmes" Journal of the Faculty of Engineering, The University of Tokyo A. 25. 26-27 (1987)

Konno、Jyunko 等人：“溶解乙炔中的杂质对扩散 Falmes 中烟灰形成的影响”东京大学工学院学报 A. 25. 26-27 (1987)

和栗 雄太郎 他: 日本機械学会論文集B編. 54. 211-216 (1988)

Yutaro Waguri 等人：日本机械工程师学会会议录，卷 B. 54. 211-216 (1988)

襄 明煥 他: 日本機械学会論文集B編. 53. 2884-2889 (1987)

Myung-huan Jo 等人：日本机械工程师学会会议录，卷 B. 53. 2884-2889 (1987)

Kamimoto, Takeyuki et.al.: SAE Paper, No.871610. 1-9 (1987)

Kamimoto、Takeyuki 等人：SAE 论文，No.871610。