Cummins After Treatment Strategies

8/11/2019 Cummins After Treatment Strategies

http://slidepdf.com/reader/full/cummins-after-treatment-strategies 1/21

TM

Technologies forGreenhouse GasEmissions Control

Dr. John C. Wall

Vice President - Chief Technical Officer

Cummins Inc.

EPA MSTRSOctober 6, 2011



TM

Who we are…

Diversified Global Power Leader

Four Complementary Businesses

Engines Power

Generation

Components Distribution



TM

3,500HP

109 HP

Cummins Engines109 to 3,500 HP



TM

10/14/20114

Cummins Approach to TechnologyDevelopment for Low Emissions

Customer + Environmental Value

– “ The Right Technology Matters”

System Integration

– Broad Technology Portfolio

– Long Term View



TM

10/14/20115

Our Products Must MeetCustomer Requirements

The Right Technology Matters

Low InitialCost

Connectedand Integrated

Systems

HighPerformance

LowMaintenance

LowEmissions

Fuel Efficient

Reliable

Low Noise andEmissions

Durable



TM

10/14/20116

System Integration ofCritical ComponentTechnologies



TM

10/14/20117

The Right Technology Matters

Broad technology portfol io

Align technology with customer application forbest value while meeting emissions requirements

EPA 07/10 Pickup Truck 2007

EPA 07 On-Highway 2007

EPA 10 On-Highway 2010

Euro 4 On-Highway 2006

Euro 5 On-Highway 2009

EPA Tier 2 > 751 hp 2006

Tier 3 / EU Stage IIIA

Appl ication In-Cylinder

Only

Cooled

EGR/VGT

NOx

Adsorber SCR

PM

After treatment

Tier 4 Interim 174-751 hp 2011

/ Stage IIIB 75-173 hp 2012

First

Date

2005



TM

10/14/20118

Reducing CO2

Hybrids

Waste Heat

Recovery

Idle

Reduction

Low Temp

AftertreatmentHigh EfficiencyClean Combustion

CO2 Fuel Efficiency

Low Carbon

Fuels



TM

10/14/20119

Reducing CO2

Hybrids

Waste Heat

Recovery

Idle

Reduction

Low Temp

Aftertreatment

Low Carbon

Fuels

High EfficiencyClean Combustion



TM

High Efficiency Clean Combustion

Sandia-Cummins Optical

Engine

Collaborative program with DoE

Early PCCI

SmokelessRich

Conventional Diesel

Late PCCI

Engine Out NOx (g/bhp-hr)

50%

45%

40%

E n g i n e B r a k e

T h e r m a l E f f i c i e n c

y ( % )

Lifted Flame

Diffusion Controlled



TM

10/14/201111

Reducing CO2

Hybrids

Waste Heat

Recovery

Idle

Reduction

Low Temp


Low Carbon

Fuels

Low Carbon

Fuels



TM

10/14/201112

Reducing CO2

Hybrids

Waste Heat

Recovery

Idle

Reduction

Low Temp


Low Carbon

Fuels

Hybrids

Waste Heat

Recovery



TM

10/14/201113

Waste Heat Recovery vs. Hybrid

Frequent

Start/Stop

Seldom

Start/Stop

Waste HeatRecoveryHybrid

F u e l E c o n o m

y B e n e f i t

Duty Cycle

Heavy Duty



TM

10/14/201114

Base Engine

Engine Power

Waste Heat

1/3

2/3



TM

10/14/201115

Engine Power

Waste Heat

Waste Heat Recovery

Waste Heat

Turbo Expander

AdditionalPower

Boiler



TM

10/14/201116

Engine Power

Waste HeatWaste Heat

AdditionalPower

Boiler

Waste Heat Recovery

Pump

Waste Heat

Condenser

Turbo Expander



TM

10/14/2011 Cummins Confidential17

ISX Engine with EGR



TM


ISX Engine with WHR WHR

Power

Turbine

Boiler

Replaces EGR Cooler

and Integrates

with EGR system

Preserve

EGR ControlSystem

V hi l I t ti d T ti f th C i



TM

Vehicle Integration and Testing of the CumminsWaste Heat Recovery System – DoE SuperTruck

19

Peterbi lt Model 587

Gen 2

Gen 3

Vehicle Packaging Under Hood

Air Flow

Reduce Size and Cost

of Components

Turbine

Expander

Transient Contro ls

Thermal Imaging of

Heat Exchangers



TM

10/14/201120

B r a k e T h e r m a

l E f f i c i e n c y ( % )

35

40

45

50

55

60

1990 1995 2000 2005 2010 2015 2020

Waste HeatRecovery

Advanced Combustion

Waste Heat Recovery And

Vehicle Electrification

Heavy Duty Engine Efficiency



TM


Documents

Cummins After Treatment Strategies