gd ci engine
TRANSCRIPT
GDCi Engine(Gasoline Direct Compression Ignition )
YAGNA V12LE6ME095
INTRODUCTIONWhat is GDCi engine?
Who developed it?
Why it is important?
BACKGROUND Diesel engine higher efficiency
with higher PM, NOx.Petrol engine lower efficiency
with lower NOx and PM.HCCI engine other practical
problems.
HISTORYThe concept was started in 2010
Delphi along with its partner Hyundai.
Prototype
Fig 1.0 Single cylinder test engine
Experiment targets
(Combustion Noise Level)
Prototype of 4c engine(2013)
Specification of 4C engine
ProcessIntake strokeCompression strokePower strokeExaust stroke
Process
GDCi
Intake
Compression
Power
Exhaust
Combustion chamber concept
Systems and fuel usedNew piston designVariable load valve train system
for exhaust rebreathingTurbo charger and super chargerNew way of cooling Fuel used was Shell unleaded
with octane number 91.
Results BSFC of 210g/kWh. NOx level under 0.2 g/kWhPM less than 0.1 FSNCOV-IMEP less than 2%Combustion efficiency was in
between 92-97%
Comparison
ConclusionThe next generation engine may
be of either GDCI engine or HCCI engine. The main aim of getting this type of engine is to have the emission as minimum as possible with minimum BSFC.
References“History of gasoline direct compression
ignition (gdci) engine- a review ”- IJRET: International Journal of Research in Engineering and Technology- Meisam Ahmadi Ghadikolaei
“GDCI Multi-Cylinder Engine for High Fuel Efficiency and Low Emissions ” – SAE international - Mark Sellnau, Wayne Moore, James Sinnamon, Kevin Hoyer, Matthew Foster, and Harry Husted (Delphi Powertrain)
THANK YOU