A Study of Gasoline-Alcohol Blended Fuels in an Advanced Turbocharged DISI Engine
Document Number: 2009-01-0138
Date Published: April 2009
Author(s):
Alasdair Cairns - Mahle Powertrain Ltd.
Neil Fraser - Mahle Powertrain Ltd.
Hugh Blaxill - Mahle Powertrain Ltd.
Martin Gold - BP Global Fuels Technology
John Rogerson - BP Global Fuels Technology
Craig Goodfellow - BP Global Fuels Technology
Abstract:
This work was concerned with evaluation of the performance and emissions of potential future biofuels during advanced spark ignition engine operation. The fuels prepared included three variants of gasoline, three gasoline-ethanol blends and a gasoline-butanol fuel altogether covering a range of oxygen mass concentrations and octane numbers to identify key influencing parameters. The combustion of the fuels was evaluated in a turbocharged multi-cylinder direct fuel injection research engine equipped with a standard three-way catalyst and an external EGR circuit that allowed use of either cooled or non-cooled EGR. The engine operating effects studied at both part- and boosted-high-load conditions included fuel injection timing and pressure, excess air tolerance, EGR tolerance and spark retard limits. A number of blends were also mapped at suitable sites across the European drive cycle under downsized engine conditions. Relative in-vehicle fuel economies were then determined via drive cycle simulation and compared to a naturally aspirated gasoline PFI engine.
File Size: 1200K
Product Status: In Stock
Included in:
V118-4
See other papers presented at SAE World Congress & Exhibition, April 2009, Detroit, MI, USA, Session: SI Combustion (Part 1 of 3): Alternative Fuels (Ethanol - E85/Hydrogen/LPG
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
|
