A comparative study of performance and regulated emissions in a medium-duty diesel engine fueled with sugarcane diesel-farnesane and sugarcane biodiesel-LS9
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2019-06-01
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Resumen
Two sugarcane biofuels and mineral diesel fuel are tested under full load conditions, under the same
values of performance and under the European Transient Cycle on an engine test bench, without any
modifications to the ECU. The target is to compare engine performance and emissions. At full load,
engine performance varies due to the variation in LHV. Under the same values of performance, the
sugarcane biodiesel-LS9 provides the lowest THC emissions. The higher CN and exhaust gas
recirculation of the sugarcane biodiesel-LS9 and the higher H/C ratio of the sugarcane diesel-farnesane
compared to the diesel S50 provide a NOx reduction. Neither the increment in bsfc nor the increment of
%EGR for the sugarcane biodiesel-LS9 deteriorate the combustion, so its CO emissions are lower. The
sugarcane biodiesel-LS9 leads to the lowest NOx and PM specific emissions under transient operation,
followed by the sugarcane diesel-farnesane. The THC and CO specific emissions are higher for the
biofuels in comparison to the diesel S50. The main reason for these results is the impact of the properties
of the biofuels on the ECU response However, both biofuels produce less harmful emissions at idle
conditions, which supports their usage to reduce exhaust emissions in urban areas.
Descripción
T1, Q1, 1er decil (3/61 Thermodynamics, IF 2019= 6.082)
Palabras clave
Sugarcane diesel-farnesane, Sugarcane biodiesel-LS9, Diesel engine, Regulated emissions, European Transient Cycle
Citación
Felipe Soto, Gian Marques, E. Torres-Jiménez, Bráulio Vieira, André Lacerda, Octavio Armas, F. Guerrero-Villar, A comparative study of performance and regulated emissions in a medium-duty diesel engine fueled with sugarcane diesel-farnesane and sugarcane biodiesel-LS9, Energy, Volume 176, 2019, Pages 392-409, ISSN 0360-5442, https://doi.org/10.1016/j.energy.2019.04.011