• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SAE World Congress >Spray and Combustion Visualization in an Optical HSDI Diesel Engine Operated in Low-Temperature Combustion Mode With Bio-Diesel and Diesel Fuels
【24h】

Spray and Combustion Visualization in an Optical HSDI Diesel Engine Operated in Low-Temperature Combustion Mode With Bio-Diesel and Diesel Fuels

机译：用生物柴油和柴油燃料，在低温燃烧模式下操作的光学HSDI柴油发动机中的喷雾和燃烧可视化

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An optically accessible single-cylinder, high-speed, direct-injection (HSDI) diesel engine equipped with a Bosch common rail injection system was used to study the spray and combustion processes for European low-sulfur diesel, bio-diesel, and their blends at different blending ratio. Influences of injection timing and fuel type on liquid fuel evolution and combustion characteristics were investigated under similar loads. The in-cylinder pressure was measured and the heat release rate was calculated. High-speed, Mie-scattering technique was employed to visualize the liquid distribution and evolution. High-speed combustion video was also captured for all the studied cases using the same frame rate. NO{sub}x emissions were measured in the exhaust pipe. The experimental results indicated that for all of the conditions the heat release rate was dominated by a premixed combustion pattern and the heat release rate peak became smaller with injection timing retardation for all test fuels. Bio-diesel fuels greatly affected the combustion process and emissions. The ignition and heat release rate peak occurred later with increasing bio-diesel content. Fuel impingement on the wall was observed for all of the conditions. The liquid penetration became longer and the fuel impingement was stronger with the increase of bio-diesel content in the fuel blends.
机译：配备有博世共轨注射系统的光学可访问的单缸，高速，直喷（HSDI）柴油发动机用于研究欧洲低硫柴油，生物柴油及其混合物的喷涂和燃烧过程以不同的混合比率。在类似负载下研究了注射正时和燃料类型对液体燃料进化和燃烧特性的影响。测量缸内压力并计算热释放速率。采用高速，MIE散射技术来可视化液体分布和进化。使用相同的帧速率，还捕获了高速燃烧视频。在排气管中测量了没有{sub} x排放。实验结果表明，对于所有条件，通过预混燃烧图案来支配热释放速率，并且热释放速率峰值较小，具有针对所有测试燃料的喷射正时延迟。生物柴油燃料极大地影响了燃烧过程和排放。随后随着生物柴油含量的增加而发生点火和热释放率峰。为所有条件观察到墙壁上的燃料冲击。液体穿透变长，随着燃料混合物中的生物柴油含量的增加，燃料冲击越大。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号