Performance and Emissions of a SI Engine using Methanol-Water Blends Ghent University

Format:

Conference/Event

Author/Creator:

Sileghem, Sileghem, author.

Contributor:

Huylebroeck, Thomas

Van den Bulcke, Arvid

Vancoillie, Jeroen

Verhelst, Sebastian

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

Using liquid alcohols, such as methanol and ethanol, inspark-ignition engines is a promising approach to decarbonizetransport and secure domestic energy supply. Methanol and ethanolare compatible with the existing fuelling and distributioninfrastructure and are easily stored in a vehicle. They can be usedin internal combustion engines with only minor adjustments and havethe potential to increase the efficiency and decrease noxiousemissions compared to gasoline engines. In addition, methanol canbe synthesized from a wide variety of sources, including renewablyproduced hydrogen in combination with atmospheric CO₂.Presently, during the production of ethanol or methanol adehydration step is always applied. This step accounts for asignificant part of the entire production process' energyconsumption and thus, from an economical point of view, methanoland ethanol could become more interesting alternative fuels if thecosts related with dehydration could be reduced.Also, methanol and ethanol are prone to absorb water when theyare exposed to the atmosphere for a considerable amount of time,for example, during transport or storage.The present study gives insights into the advantages that couldexist with methanol-water blends and compares the brake thermalefficiencies and engine-out emissions from a production-typefour-cylinder SI gasoline engine running on gasoline, pure methanoland methanol-water blends. Methanol-water blends of 2.5% v/v, 5%v/v and 10% v/v water are tested. It is shown that the brakethermal efficiency does not differ significantly for all methanolfuels and is still higher than the efficiency on gasoline.NOx emissions are reduced substantially for the fuelswith higher water content

Notes:

Vendor supplied data

Publisher Number:

2013-01-1319

Access Restriction:

Restricted for use by site license