Influence of Fischer-Tropsch Incorporation on Engine Outputs and Performances of a Modern Diesel Engine with Standard and Optimized Settings IFP Energies nouvelles

Format:

Conference/Event

Author/Creator:

Piperel, Piperel, author.

Contributor:

Jeuland, Nicolas

Noel, Ludovic

Pidol, Ludivine

Conference Name:

10th International Conference on Engines & Vehicles (2011-09-11 : Naples, Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

In a context of a fossil reserve depletion and reduction ofgreenhouse gases (GHG) emissions, the search for new energy fortransport is fundamental. Among those new energies, alternativefuels and especially synthetic fuel from Fischer-Tropsch process(so-called XtL, "X-to-Liquid" fuels) seem to have aninteresting potential in terms of availability and GHG emissionreduction, according to the feedstock used.Due to the special properties of such products, especially highcetane number, several strategies of incorporation can beenvisaged: as a blend in specific basestocks in order to obtain aconventional fuel or a premium fuel or as a pure component. Inorder to assess these strategies; a standard diesel fuel (B0), ablend with 40%vol of Fischer-Tropsch and a neat Fischer-Tropschhave been tested on a modern downsized high pressure directinjection single-cylinder diesel engine. The used Fischer-Tropschfuel is a commercial GtL - Gas to Liquid, with a cetane numberhigher than 80.First, engine tests have been performed with the same enginesettings than the B0 fuel in order to evaluate the impact of thefuel formulation on the combustion behavior and on the engineoutputs. Then, the engine settings were optimized for each fuel inorder to achieve the best engine outputs, and so, evaluate theintrinsic performance of the tested fuels.This study allows understanding the influence of highauto-ignition fuels with low aromatic content on pollutantemissions at low speed/low load conditions (1500 rpm 3 bar of IMEP)and also on performances at full load. Without a dedicatedcalibration, the Fischer-Tropsch-based fuels induce a noticeablemodification of the combustion process and engine outputs. The fullpotential of such fuels can only be achieved after a dedicatedoptimization of engine settings. This optimization enables toreduce HC and CO emissions at low speed/low load and increase theeffective power at full load thanks to a smoke emissiondecrease.Some of these tests have received funding from the EuropeanCommunity's FP7 under grant agreement n° 218890"OPTFUEL"

Notes:

Vendor supplied data

Publisher Number:

2011-24-0114

Access Restriction:

Restricted for use by site license