THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Particulate matter emission from a heavy duty diesel engine with three binary blends

ABSTRACT
Low temperature combustion using gasoline-like fuels has the potential to provide high efficiencies and extremely low nitrogen oxide and soot emissions. In this study, different volume percentages (30%~70%) of iso-octane, toluene and n-butanol are blended with n-heptane separately. These blends with different composition ratios are tested on a modified single-cylinder research engine. Also, simulations are performed using a homogeneous reactor method to know the fuel-chemical effects on particulate matter emissions. Thirdly, a composition ratio of 70% is selected to perform further experiments based on the results from the initial composition ratio experiments with a focus on the particle size distributions. It was found that if the test fuel can provide sufficient ignition delay to allow fuel to premix with air fully, the soot emissions will be low and particle size is small even if the test fuel contains a lot of aromatic compounds.
KEYWORDS
PAPER SUBMITTED: 2018-01-12
PAPER REVISED: 2018-04-17
PAPER ACCEPTED: 2018-04-19
PUBLISHED ONLINE: 2018-09-29
DOI REFERENCE: https://doi.org/10.2298/TSCI180112260W
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