Fundamental studies of auto-ignition and combustion in a low-emission natural gas engine

众所周知，天然气（NG）在常规柴油发动机操作条件下不会自燃。热表面点火（HSI）为这一问题提供了一个实用的解决方案。因此，所提出的研究计划的目标是双重的;在最基本的水平，研究的目的是发展一个更好的理解卷吸和混合的作用，对湍流气体燃料射流的点火和燃烧的冲击在热表面上。在应用层面上，研究的目的是开发一种强大的热表面点火器，用于直接喷射，天然气燃料，柴油循环发动机。

It is well known that natural gas (NG) does not auto-ignite under conventional diesel engine operating conditions. Hot surface ignition (HSI) provides a practical solution to this problem. Therefore, the objectives of the proposed research program are twofold; at the most fundamental level, the research is intended to develop an improved understanding of the role of entrainment and mixing on the ignition and combustion of turbulent gaseous fuel jets impinging on a hot surface. At an applied level, the objective of the research is to develop a robust hot-surface igniter for use in a direct-injected, natural gas fuelled, diesel cycle engines.