scania – ed95 development - · pdf filescania – ed95 development alcohol ci...

SCANIA – ED95 development Alcohol CI combustion Per Stålhammar Scania CV AB Head of advance combustion development

2015-03-03

Per Stålhammar

OUTLINE

Market drivers

History

Alcohol CI combustion

ED95 technology

Summary

2015-03-03

Per Stålhammar

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

Market drivers WTW GHG emissions

2015-03-03

Per Stålhammar

EthanolBiodiesel

BiomethaneHVO

Market drivers Emission legislation

2015-03-03

Per Stålhammar

2015-03-03

Per Stålhammar

Ethanol History

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

ED95 fuel specification

2015-03-03

Per Stålhammar

2015-03-03

Per Stålhammar

Brake thermal efficiency in “best point” and transient bus cycle

ED95 Thermal efficiency

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

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.

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.

2015-03-03

Per Stålhammar

ED95 combustion system

2015-03-03

Per Stålhammar

Cylinder pressure and heat release for pure ethanol and ED95 ED95 combustion system

1125 rpm 25% load

ED95 combustion system

2015-03-03

Per Stålhammar

ED95 Diesel

16

Combustion system development

• Piston design • Injection system optimization • Combustion system optimization with CFD

Find a matching package

2015-03-03

Per Stålhammar

2015-03-03

Per Stålhammar

Scania ATS (after treatment system)

ATS for improved efficiency

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

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