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

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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.