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8/11/2019 Cummins After Treatment Strategies
http://slidepdf.com/reader/full/cummins-after-treatment-strategies 1/21
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Technologies forGreenhouse GasEmissions Control
Dr. John C. Wall
Vice President - Chief Technical Officer
Cummins Inc.
EPA MSTRSOctober 6, 2011
8/11/2019 Cummins After Treatment Strategies
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Who we are…
Diversified Global Power Leader
Four Complementary Businesses
Engines Power
Generation
Components Distribution
8/11/2019 Cummins After Treatment Strategies
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3,500HP
109 HP
Cummins Engines109 to 3,500 HP
8/11/2019 Cummins After Treatment Strategies
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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
8/11/2019 Cummins After Treatment Strategies
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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
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10/14/20116
System Integration ofCritical ComponentTechnologies
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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
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10/14/20118
Reducing CO2
Hybrids
Waste Heat
Recovery
Idle
Reduction
Low Temp
AftertreatmentHigh EfficiencyClean Combustion
CO2 Fuel Efficiency
Low Carbon
Fuels
8/11/2019 Cummins After Treatment Strategies
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TM
10/14/20119
Reducing CO2
Hybrids
Waste Heat
Recovery
Idle
Reduction
Low Temp
Aftertreatment
Low Carbon
Fuels
High EfficiencyClean Combustion
8/11/2019 Cummins After Treatment Strategies
http://slidepdf.com/reader/full/cummins-after-treatment-strategies 10/21
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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
8/11/2019 Cummins After Treatment Strategies
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10/14/201111
Reducing CO2
Hybrids
Waste Heat
Recovery
Idle
Reduction
Low Temp
AftertreatmentHigh EfficiencyClean Combustion
Low Carbon
Fuels
Low Carbon
Fuels
8/11/2019 Cummins After Treatment Strategies
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TM
10/14/201112
Reducing CO2
Hybrids
Waste Heat
Recovery
Idle
Reduction
Low Temp
AftertreatmentHigh EfficiencyClean Combustion
Low Carbon
Fuels
Hybrids
Waste Heat
Recovery
8/11/2019 Cummins After Treatment Strategies
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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
8/11/2019 Cummins After Treatment Strategies
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10/14/201114
Base Engine
Engine Power
Waste Heat
1/3
2/3
8/11/2019 Cummins After Treatment Strategies
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10/14/201115
Engine Power
Waste Heat
Waste Heat Recovery
Waste Heat
Turbo Expander
AdditionalPower
Boiler
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10/14/201116
Engine Power
Waste HeatWaste Heat
AdditionalPower
Boiler
Waste Heat Recovery
Pump
Waste Heat
Condenser
Turbo Expander
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10/14/2011 Cummins Confidential17
ISX Engine with EGR
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10/14/2011 Cummins Confidential18
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
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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
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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
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10/14/2011 Cummins Confidential21
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