With high-pressure dual-fuel combustion, natural gas is injected at high pressure directly into the combustion chamber of a reciprocating engine and is ignited by a small amount of diesel pilot fuel. Based on a fundamental investigation of two single fuel jets in a rapid compression-expansion machine, the processes involved and the means to influence them are described. Apart from the conditions required for stable pilot ignition, the characteristics of heat release and the mechanisms governing pollutant formation are thereby identified. This allows the knowledge-based optimization of the combustion process, as it is demonstrated with a wall-bounded natural gas jet.
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With high-pressure dual-fuel combustion, natural gas is injected at high pressure directly into the combustion chamber of a reciprocating engine and is ignited by a small amount of diesel pilot fuel. Based on a fundamental investigation of two single fuel jets in a rapid compression-expansion machine, the processes involved and the means to influence them are described. Apart from the conditions required for stable pilot ignition, the characteristics of heat release and the mechanisms governing...
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