Impacts of Low-Level 2-Methylfuran Content in Gasoline on DISI Engine Combustion Behavior and Emissions 2013-01-1317
Research studies show that 2-methylfuran (MF) is a promising
gasoline alternative regarding its positive effect on engine
performance and emissions. Before using pure MF in spark ignition
engines, it is more likely to be used in a low-level blended form
in gasoline.
An experimental research study was carried out to investigate
the impacts of low-level MF content in gasoline (volumetric 10% MF
in blend) on direct-injection spark-ignition (DISI) engine
combustion behavior and emissions. The tests were conducted on a
single-cylinder spray-guided DISI research engine at an engine
speed of 1500 rpm under stoichiometric conditions. The engine loads
of 3.5 ~ 8.5 bar IMEP were tested and gasoline-optimized spark
timing was used. Furthermore, the effects of spark timing, exhaust
gas recirculation (EGR) and valve overlap on NOx
emissions were tested. The results showed that by adding 10% MF to
gasoline, the combustion behavior was not changed significantly
however the combustion stability has been improved. The HC
emissions were reduced and the NOx emissions were
comparable. At low engine load (3.5 bar IMEP), retarded spark
timing, EGR and increased valve timing all tended to reduce
NOx emissions. However adding EGR or retarding the spark
timing resulted in reduced indicated efficiency. The increased
valve overlap is an ideal strategy to reduce NOx
emissions for its less negative effect on combustion stability and
improved indicated efficiency, compared to the effect of retarded
spark timing and EGR.
Citation: Wang, C., Xu, H., and Lattimore, T., "Impacts of Low-Level 2-Methylfuran Content in Gasoline on DISI Engine Combustion Behavior and Emissions," SAE Technical Paper 2013-01-1317, 2013, https://doi.org/10.4271/2013-01-1317. Download Citation
Author(s):
Chongming Wang, Hongming Xu, Thomas Lattimore
Affiliated:
University of Birmingham
Pages: 8
Event:
SAE 2013 World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SI Combustion, 2013-SP-2343
Related Topics:
Exhaust gas recirculation (EGR)
Spark ignition engines
Combustion and combustion processes
Emissions
Gasoline
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