• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy >Homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) in compression ignition engine with low octane gasoline
【24h】

Homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) in compression ignition engine with low octane gasoline

机译：低辛烷值汽油的压燃式发动机中的均质充量压燃（HCCI）和部分预混燃烧（PPC）

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

The present study investigated the in-cylinder combustion for low octane 70 primary reference fuel (PRF70) by the method of the flame index during the transition from homogeneous charge compression ignition (HCCI) combustion to partially premixed combustion (PPC). Full cycle engine simulations were performed using CONVERGE™, coupled with chemical kinetics. Good agreements between the simulations and experiments were achieved at HCCI and PPC combustion modes. The fully premixed HCCI mode was achieved at the earliest injection timing of −180 CAD aTDC with the combustion temperature below 1600 K, where the formation of soot and NOx can be successfully avoided. For the injection timing of −100 CAD aTDC, the premixed charge compression ignition (PCCI) was achieved where the premixed combustion clouds were mainly distributed in the piston top-land zone and were surrounded by the diffused combustion that occurs in the piston bowl and the periphery of piston top. Less premixed flames were formed in piston top and surrounded by more diffusion mixtures at PPC mode. The in-cylinder HO2evolution profile displayed two bumps which were distributed in low temperature zone and high temperature zone respectively. The spatial and temporal evolution of HO2is very similar to the distribution of premixed flames.
机译：本研究通过从均质充量压缩点火（HCCI）燃烧到部分预混燃烧（PPC）过渡期间的火焰指数方法研究了低辛烷值70的主要参考燃料（PRF70）的缸内燃烧。使用CONVERGE™结合化学动力学进行全循环发动机仿真。在HCCI和PPC燃烧模式下，模拟和实验之间达成了良好的协议。在-180 CAD aTDC的最早喷射正时实现了完全预混合的HCCI模式，燃烧温度低于1600 K，可以成功避免烟灰和NOx的形成。对于-100 CAD aTDC的喷射正时，实现了预混合充气压燃（PCCI），其中预混合燃烧云主要分布在活塞顶区，并被在活塞碗和活塞中发生的扩散燃烧所包围。活塞顶部的外围。在PPC模式下，较少的预混火焰在活塞顶部形成，并被更多的扩散混合物包围。缸内HO2演变曲线显示两个隆起，分别分布在低温区和高温区。 HO2的时空演化与预混火焰的分布非常相似。

著录项

  • 来源
    《Energy》 |2018年第1期|181-191|共11页
  • 作者

    Yanzhao An; Mohammed Jaasim; Vallinayagam Raman; Francisco E. Hernández Pérez; Jaeheon Sim; Junseok Chang; Hong G. Im; Bengt Johansson;

  • 作者单位

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

    Clean Combustion Research Center (CCRC), King Abdullah University of Science and Technology (KAUST);

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Low octane gasoline; HCCI; PPC; Flame index; Premixed combustion;

    机译：低辛烷值汽油;HCCI;PPC;火焰指数;预混燃烧;

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