Effect of Different Ethanol-Gasoline Blends on Exhaust Emissions and Fuel Consumption Applus IDIADA

Format:

Conference/Event

Author/Creator:

Delgado, Delgado, author.

Contributor:

Paz, Susanna

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Ethanol fuel is a sustainable energy resource that is intendedto provide a more environmentally and economically friendlyalternative to petroleum-based fuels, such as gasoline. Recentinterest in ethanol has increased due to the fact that it can becombined with gasoline at different percentages: from lowpercentages with not specially modified gasoline vehicles up to 85%of ethanol, and even up to 100%, in flexible-fuel vehicles.There is much debate and a considerable amount of concern amongautomakers and consumers regarding the environmental friendlinessof ethanol, mainly due to the lack of complete knowledge about theeffects of its use on direct pollutants from exhaust vehicleemissions such as CO, CO₂, NOx, HCs and particulates and on thefuel consumption of the vehicle. Furthermore, there is concernregarding the impact that ethanol could have on the differentVOC's, principally because they are ozone precursors due totheir reaction in the atmosphere with nitrogen oxides (NOx) in thepresence of sunlight, which contributes to ground-level ozoneformation.This paper aims to evaluate the impact of adding ethanol togasoline on exhaust emissions and fuel consumption, measuringregulated and non-regulated pollutants. To achieve this objective,exhaust emissions tests adapted to the use of ethanol blends wereperformed using a Euro 4 vehicle running with E0, E5 splash and E10and a flexible-fuel vehicle running with E0 and E85. An analysis ofthe automotive engine exhaust for standard pollutants (CO, CO₂ HC,NOx, particulates) was performed. Then these regulated measurementswere completed with the speciation of the exhaust emissionsdetermining the different contributions of some aldehydes, ketones,ethanol and different individual hydrocarbons, determined byHRGC-FID and HPLC-UV. This long list of pollutants and theirparticular ozone-forming potential were used to estimateground-level ozone formation and the effect of differentethanol-gasoline blends on it.The paper concludes with an evaluation of the results obtainedin order to determine the effects of adding different percentagesof ethanol to gasoline on exhaust emissions (regulated andnon-regulated) and fuel consumption as well as to determine theimpact on ground-level ozone formation

Notes:

Vendor supplied data

Publisher Number:

2012-01-1273

Access Restriction:

Restricted for use by site license