Patrick Charbonneau VP Regulatory and Technology Affairs International Truck and Engine Corporation...
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Transcript of Patrick Charbonneau VP Regulatory and Technology Affairs International Truck and Engine Corporation...
Patrick CharbonneauVP Regulatory and Technology
AffairsInternational Truck and Engine
CorporationDiesel Emissions Summit II
March 16, 2004
2007 Technologies Today and Tomorrow
Green Diesel Experience PM filters on Production School
Buses
Nox Adsorbers Cost Efficiency
Virtual Sensors Taking advantage of computing
power
Eye Chart
WHATIS THEKEYTO
2007PRODUCTLIFE
PARTICULATEFILTERREGENERATION
Better
Or Worse
Better
Or Worse
Soot filter traps all soot particles and hydrocarbon.It needs to burn off the trapped soot particles.A key measure of its performance is the balance point temperature.The balance point temperature varies from engine to engine.
Balance point temperature: the engine operating condition and the exhaust temperature where soot burn off rate is greater than or equal to the engine soot output.
Green Diesel TechnologyGreen Diesel TechnologyTMTM School Bus: School Bus:Introduced in 2001Introduced in 2001
Green Diesel TechnologyGreen Diesel Technology® ® School Bus: School Bus: 2007 Technology Today2007 Technology Today
International 530E 275HP diesel engine International 530E 275HP diesel engine with special low-NOx calibrationwith special low-NOx calibration
Catalyzed diesel particulate filterCatalyzed diesel particulate filter Must use ultra-low-sulfur (<15ppm) Must use ultra-low-sulfur (<15ppm)
diesel fueldiesel fuel EPA/CARB emission certifications granted EPA/CARB emission certifications granted
March 2001March 2001 Customer deliveries began in 2001Customer deliveries began in 2001
100
150
200
250
300
350
400
450
500
550
600
0 200 400 600 800 1000 1200
Time (s)
Te
mp
era
ture
(C
)
15
35
55
75
95
115
135
De
lta
P (
mb
ar)
Average Temp Pressure Drop
PM Filter Regeneration
Green Diesel Field History
No Warranty Claims on PM filter Superb Reliability Record Hundreds in Production In the Field Since 2001 Happy Customers Proper Regeneration = Reliable
Product
Nox Adsorber
Cost Improvements Efficiency Improvements
2010 HD / 2009 LD
P2
CDPFTin
P
P1
MufflerNOx Adsorber
NOx or UEGO Sensor
ToutDOC
NOx Adsorber
NOx Adsorber Progress
Time History
0
15
25
35
50
65
75
85
100
April-01 November-01 May-02 December-02 June-03 January-04
Pre
cio
us
Met
als
Ind
ex
Effect of Feed Gas NOx Emission Level on LNT Performance
(HD FTP with Engine-aged LNT )
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Feed Gas High Feed Gas Low
NO
x (
g/b
hp
-hp
)
Engine_out NOx (g/bhp-hr)Tailpipe NOx (g/bhp-hr)
60% NOx Reduction
75% NOx Reduction
Same L/R Calibration
•LNT Absorbs About the Same Amount of NOx Regardless of Feed-gas Level, Resulting In Higher Efficiency with Lower Feed-gas Level
NOx Adsorber Conclusions
Precious Metals Content continues to Decline
Costs Improve
The NOx Adsorber Acts like a NOx Capacitor
Lower engine out NOx means Higher efficiency Catalyst
Virtual Sensors
How would you like a device that: You don’t maintain There is no warranty Its reliable Its durable It provides the results that you
want Does not physically exist
NOx - VS1.4
0
200
400
600
800
1000
1200
1400
0 200 400 600 800 1000 1200
Time (s)
NO
x
meas
vs1.4
NOx Virtual Sensor Validation
Conclusions
PM filters are successful in commercial vehicles today Proper regeneration will provide
functionality as well as reliability The typical class 8 truck load
factors will induce passive regeneration (like Green Diesel Buses)
Conclusions
NOx AdsorbersCost Improvements = precious metals reductions
Cost Improvements = Efficiency improvements
Virtual SensorsTaking advantage of computing power
It is very cost effective if “nothing” is there