...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Optical investigation of the combustion behaviour inside the engine operating in HCCI mode and using alternative diesel fuel
【24h】

Optical investigation of the combustion behaviour inside the engine operating in HCCI mode and using alternative diesel fuel

机译：光学研究以HCCI模式运行并使用替代柴油的发动机内部燃烧行为

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In order to understand the effect of both the new homogeneous charge compression ignition (HCCI) combustion process and the use of biofuel, optical measurements were carried out into a transparent CR diesel engine. Rape seed methyl ester was used and tests with several injection pressures were performed. OH and HCO radical were detected and their evolutions were analyzed during the whole combustion. Moreover, soot concentration was measured by means the two colour pyrometry method. The reduction of particulate emission with biodiesel as compared to the diesel fuel was noted. Moreover, this effect resulted higher increasing the injection pressure. In the case of RME the oxidation of soot depends mainly from O2 content of fuel and OH is responsible of the NO formation in the chamber as it was observed for NOx exhaust emission. Moreover, it was investigated the evolution of HCO and CO into the cylinder. HCO was detected at the start of combustion. During the combustion, HCO oxidizes due to the increasing temperature and it produces CO. Both fuels have similar trend, the highest concentrations are detected for low injection pressure. This effect is more evident for the RME fuel.
机译：为了了解新的均质充量压缩点火（HCCI）燃烧过程和使用生物燃料的影响，对透明CR柴油机进行了光学测量。使用了油菜籽甲酯，并在几种注入压力下进行了测试。检测了整个燃烧过程中的OH和HCO自由基，并分析了它们的演变。另外，通过二色高温法测定了烟尘浓度。注意到与柴油相比，生物柴油减少了颗粒物排放。此外，该效果导致更高的注射压力增加。在RME的情况下，烟灰的氧化主要取决于燃料中的O2含量，并且由于观察到NOx废气的排放，OH负责燃烧室内NO的形成。此外，还研究了HCO和CO进入气缸的过程。在燃烧开始时检测到HCO。在燃烧过程中，HCO由于温度升高而氧化，并生成CO。两种燃料的趋势相似，在低喷射压力下可检测到最高浓度。对于RME燃料，这种效果更为明显。

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