Browse Publications Technical Papers 2015-01-1785
2015-09-01

An Analysis of Conditions Producing Two-Stage Main Combustion Heat Release in a Supercharged HCCI Engine using a Gaseous Fuel Blend 2015-01-1785

In this study, a detailed analysis was made of supercharged HCCI combustion using a two-component fuel blend of dimethyl ether (DME), which has attracted interest as a potential alternative fuel, and methane. The quantity of fuel injected and boost pressure were varied to investigate the equivalence ratio and operating region conducive to optimal HCCI combustion. The results revealed that varying the boost pressure according to the engine load and applying a suitable equivalence ratio induced two-stage main combustion over a wide load range, making it possible to avoid excessively rapid combustion.

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