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SCANIA – ED95 development Alcohol CI combustion Per Stålhammar Scania CV AB Head of advance combustion development
2015-03-03
Per Stålhammar
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OUTLINE
Market drivers
History
Alcohol CI combustion
ED95 technology
Summary
2015-03-03
Per Stålhammar
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Clean Truck Utvärdering av projektresultat 2010-2014
2015-03-03
Per Stålhammar
Scanias ED95 teknologi uppvisade störst CO2 reduktion vid utvärdering av Clean Truck projektresultat 2010-2014
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Market drivers WTW GHG emissions
2015-03-03
Per Stålhammar
EthanolBiodiesel
BiomethaneHVO
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Market drivers Emission legislation
2015-03-03
Per Stålhammar
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2015-03-03
Per Stålhammar
Ethanol History
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ED95 technology 7
Scania ED95 engine gen4: • Based on Scania proven Diesel engine.
• Compression ignition enables high efficiency.
• Similar thermal load as Diesel
• Similar efficiency as Diesel
• Reduction of CO2:
• Reduction of NOx:
• Reduction of PM: *compared to Diesel
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ED95 fuel specification
2015-03-03
Per Stålhammar
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2015-03-03
Per Stålhammar
Brake thermal efficiency in “best point” and transient bus cycle
ED95 Thermal efficiency
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ED95 Emissions ED95 compared to Diesel (engine out emissions)
2015-03-03
Per Stålhammar
Scania ED95 technology has shown reduced emissions of NOx and Particulates compared to Diesel
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2015-03-03
Per Stålhammar
Alcohol CI combustion Ignition delay with different fuels Diesel CR=17 Alcohol CR=28
Diesel ignition delay.
Methanol ignition delay. Ethanol ignition delay.
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2015-03-03
Per Stålhammar
ED95 combustion system Ignition delay with different fuels Diesel CR=17 Alcohol CR=28
Diesel ignition delay. ED95 ignition delay.
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2015-03-03
Per Stålhammar
ED95 combustion system
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2015-03-03
Per Stålhammar
Cylinder pressure and heat release for pure ethanol and ED95 ED95 combustion system
1125 rpm 25% load
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ED95 combustion system
2015-03-03
Per Stålhammar
ED95 Diesel
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16
Combustion system development
• Piston design • Injection system optimization • Combustion system optimization with CFD
Find a matching package
2015-03-03
Per Stålhammar
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2015-03-03
Per Stålhammar
Scania ATS (after treatment system)
ATS for improved efficiency
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Emissions NOx
Fuel
con
sum
ptio
n, C
O2
Combustion trade off CO2 NOx
Engine development is all about moving closer to origo
Efficient exhaust after treatment system enables high thermal
efficiency/ low CO2
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Summary
• Scania ED95 technology has high proven GHG reduction potential. •ED95 technology enables Diesel like properties. •Scania ATS and XPI will allow further development of Alcohol CI technology. •Future technology development will focus on optimizing efficiency and minimizing emissions.
2015-03-03
Per Stålhammar