Theoretical investigation of flame propagation process in an SI engine running on gasoline–ethanol blends

2007 ◽  
Vol 32 (5) ◽  
pp. 758-771 ◽  
Author(s):  
Hakan Bayraktar
Keyword(s):  
Flame Propagation ◽  
Theoretical Investigation ◽  
Si Engine ◽  
Propagation Process ◽  
Ethanol Blends

Theoretical investigation on combustion characteristics of ethanol-fueled dual-plug SI engine

Fuel ◽  
2019 ◽  
Vol 257 ◽  
pp. 116068 ◽  
Author(s):  
İsmail Altın ◽  
Atilla Bilgin ◽  
İsmet Sezer
Keyword(s):  
Theoretical Investigation ◽  
Combustion Characteristics ◽  
Si Engine

scholarly journals Experimental Comparative Study on Performance and Emissions of E85 Adopting Different Injection Approaches in a Turbocharged PFI SI Engine

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1555 ◽  
Author(s):  
Cinzia Tornatore ◽  
Luca Marchitto ◽  
Maria Antonietta Costagliola ◽  
Gerardo Valentino
Keyword(s):  
Fuel Injection ◽  
Reference Conditions ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Intake Manifold ◽  
Si Engine ◽  
Spark Timing ◽  
Performance And Emissions ◽  
Ethanol Blends ◽  
Cylinder Port

This study examines the effects of ethanol and gasoline injection mode on the combustion performance and exhaust emissions of a twin cylinder port fuel injection (PFI) spark ignition (SI) engine. Generally, when using gasoline–ethanol blends, alcohol and gasoline are externally mixed with a specified blending ratio. In this activity, ethanol and gasoline were supplied into the intake manifold into two different ways: through two separated low pressure fuel injection systems (Dual-Fuel, DF) and in a blend (mix). The ratio between ethanol and gasoline was fixed at 0.85 by volume (E85). The initial reference conditions were set running the engine with full gasoline at the knock limited spark advance boundary, according to the standard engine calibration. Then E85 was injected and a spark timing sweep was carried out at rich, stoichiometric, and lean conditions. Engine performance and gaseous and particle exhaust emissions were measured. Adding ethanol could remove over-fueling with an increase in thermal efficiency without engine load penalties. Both ethanol and charge leaning resulted in a lowering of CO, HC, and PN emissions. DF injection promoted a faster evaporation of gasoline than in blend, shortening the combustion duration with a slight increase in THC and PN emissions compared to the mix mode.

327 Development of Non-eccentric Rotor IC Engine : Optical Observations of Ignition and Flame Propagation Process

2014 ◽  
Vol 2014.63 (0) ◽  
pp. _327-1_-_327-2_
Author(s):  
Yu SAKAI ◽  
Keisuke TESHIMA ◽  
Hiroyuki FUJII ◽  
Yusaku YAMAMOTO ◽  
Yu SAIKI ◽  
...  
Keyword(s):  
Flame Propagation ◽  
Optical Observations ◽  
Propagation Process ◽  
Ic Engine ◽  
Eccentric Rotor
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