Browse Publications Technical Papers 2006-01-3248
2006-10-16

Influence of Carbon Dioxide on Combustion in an HCCI Engine with the Ignition-Control by Hydrogen 2006-01-3248

A homogeneous-charge compression-ignition (HCCI) engine system that was fuelled with dimethyl ether (DME) and methanol-reformed gas (MRG) has been proposed in the previous research. Adjusting the proportion of DME and MRG can effectively control the ignition timing of the engine. In the system, both fuels are to be produced from methanol in onboard reformers utilizing the engine exhaust gas heat. While hydrogen contained in MRG has the main role of the ignition control, hydrogen increases with carbon dioxide in the methanol reforming. This paper investigates the influence of carbon dioxide on HCCI combustion engine with the ignition control by hydrogen. Both thermal and chemical effects of carbon dioxide are analyzed.

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