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

众所周知，天然气在常规柴油机工况下不会自动着火。热表面点火(HSI)为解决这一问题提供了一种实用的解决方案。因此，拟议的研究计划的目标是双重的；在最基本的层面上，这项研究的目的是为了更好地理解卷吸和混合对撞击热表面的湍流气态燃料射流的点火和燃烧的作用。在应用层面上，这项研究的目标是开发一种坚固耐用的热表面点火器，用于直喷式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.