• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Clean air >FORMATION AND OXIDATION OF SOOT PARTICULATES IN A DIESEL FUEL SPRAY FLAME
【24h】

FORMATION AND OXIDATION OF SOOT PARTICULATES IN A DIESEL FUEL SPRAY FLAME

机译：柴油机喷射火焰中烟尘颗粒的形成和氧化

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

This paper presents an analysis of experimental data acquired inside the combustion chamber of a high-pressure steady-flow spray burner. The data consists of dimensions of primary particles in soot agglomerate samples taken from axial locations at different distances from the injector tip and at off-axis positions at a fixed axial distance mid-way along the chamber. Corresponding values of soot volume fraction are given. Diesel fuel was used in these tests, which were conducted at pressures between 1.1 and 2.1 MPa with input mixture equivalence ratios ranging from 0.8 to 1.2. Particle size distribution and mean particle diameters were calculated at the different locations using transmitting electron microscopy and associated image-analysis diagnostics. A computer-simulated oxidation process was applied to measured size distributions from upstream locations to compare with actual measured distributions obtained at downstream locations. Agreement was found to depend on local conditions. Evidence of internal oxidative attack is demonstrated for some individual primary particles within the agglomerates through a widening of the crystallite spacing under certain operating conditions.
机译：本文对高压恒流喷雾燃烧器燃烧室内部获得的实验数据进行了分析。数据由烟尘附聚物样品中的初级颗粒尺寸组成，这些颗粒是从距喷油嘴尖端不同距离的轴向位置以及沿腔室中途沿固定轴向距离的离轴位置获取的。给出了烟灰体积分数的相应值。在这些测试中使用柴油燃料，这些燃料是在1.1至2.1 MPa的压力下进行的，输入混合当量比为0.8至1.2。使用透射电子显微镜和相关的图像分析诊断程序在不同位置计算粒径分布和平均粒径。将计算机模拟的氧化过程应用于上游位置的测量尺寸分布，以与下游位置获得的实际测量分布进行比较。发现协议取决于当地条件。在某些操作条件下，通过扩大微晶间距，可以看出团聚体内某些单个初级颗粒内部氧化侵蚀的证据。

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