This work investigated the characteristics of both total and methane hydrocarbon emissions from a spark-ignition research engine fuelled with natural gas and gasoline. The engine was operated at a range of equivalence ratios, spark timings and speeds. Measurements were also made during warm-up. The effects of exhaust gas recirculation at stoichiometric operation with special regard to oxides of nitrogen emissions were also investigated in a direct comparison between natural gas and gasoline fuelling at constant engine torque.The main conclusions from this work are that:
Comparison of Emissions from Natural Gas and Gasoline Fuelled Engines - Total Hydrocarbon and Methane Emissions and Exhaust Gas Recirculation Effects
Sae Technical Papers
International Congress & Exposition ; 1997
1997-02-24
Aufsatz (Konferenz)
Englisch
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