Impacts of ethanol level and aromatic hydrocarbon structure in the fuel on the particle emissions from a Gasoline Direct Injection vehicle IFP Energies Nouvelles

Format:

Book

Conference/Event

Author/Creator:

Tahtouh, Toni, author.

Contributor:

Anselmi, Patricia

Matrat, Mickaël

Conference Name:

SAE Powertrains, Fuels & Lubricants Meeting (2020-09-22 : Krakow, Poland)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2020

Summary:

The recent particulate number limits for a spark ignition engine combined with the real driving emissions (RDE) compliance have motivated the need for a better understanding of the effect of the gasoline fuel composition on the particle emissions. More particularly, the fundamental role of high boiling point components and heavy aromatics on particle emissions was highlighted in several literature works. In addition, works driven by the European Renewable Energy Directive are underway in order to explore the feasibility of an increased amount of sustainable Biofuels in Gasoline.The present work aims to understand the effect of ethanol addition and aromatics composition on particulate emissions. Vehicle tests were performed over the Worldwide Harmonized Light Vehicles Test Cycle (WLTC) using a Euro6c and a Euro 6d-Temp Gasoline Direct Injection vehicles. Particulate emissions measurements were performed using E10 Euro VI reference fuel and nine different fuel blends containing between 10% and 40% of ethanol and 17% to 35% of aromatic hydrocarbons by volume. Results confirm the positive effect of Ethanol addition with simultaneous aromatic dilution on particle number. Contrarily, by adding ethanol and by maintaining the same fraction of aromatics through a simultaneous addition of both components, no significant difference in particle numbers was observed.The Honda Particulate Matter Index (PMI) proposed by Aikawa et. al and other fuel indices were also evaluated in terms of agreement with vehicle test bed results for a passenger car.The high sensitivity of PMI index to hydrocarbons content leads to a good agreement with vehicle test results for the cases with aromatic content variations. However, for mixtures with simultaneous addition of aromatics and ethanol, the PMI indices do not exhibit a good correlation with vehicle test measurements

Notes:

Vendor supplied data

Publisher Number:

2020-01-2194

Access Restriction:

Restricted for use by site license