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9th CLEERS Workshop
2006-05-02 - 2006-05-04
Emphasized topic areas:
- Diesel Particle Filters
- Selective Catalytic Reduction
- Lean NOx Traps
- Synergies between these three components in actual systems
Objectives:
- Provide technical updates on the latest developments for these technologies and corresponding simulation tools
- Enhance emissions control collaboration among industry, government and universities
- Improve and update recognition of key research priorities
Purpose
- CLEERS workshops are intended as relatively informal but tightly focused forums for sharing recent research results on understanding and simulating lean exhaust emissions control. Joint participation by researchers in government, universities, and industry is encouraged. This is the 9th workshop in a series sponsored by the DOE Office of FreedomCAR and Vehicle Technologies and the DOE Diesel Crosscut Team. The results of the workshop discussions, especially the all-participant discussion at the end, will be documented for the DOE Office of Transportation Technology (OTT) for consideration in improving R&D priorities and technical focus in DOE-supported transportation programs.
About Workshop 9
- The 9th CLEERS workshop will be hosted by University of Michigan at their Dearborn Campus in Detroit from May 2nd through 4th, 2006. Diesel particulate filters (DPF), selective catalytic reduction (SCR) and lean NOx traps (LNT’s) will be the major discussion themes, but it is also anticipated that there will be important updates on synergies among these components in actual systems. As with the previous CLEERS workshops, this will be a public meeting open to all who are interested in the most recent developments in understanding and simulating the performance of these devices under realistic conditions.
It is expected that the workshop presentations will include invited presentations by internationally prominent researchers in DPF, SCR and LNT. Contributed presentations of 20-30 minutes about DPF, SCR, and LNT technologies are also invited from interested parties. Those who are interested in making such presentations should contact one of the following topical coordinators:
- DPF technology – George Muntean, Pacific Northwest National Laboratory, email George.Muntean@pnl.gov, phone 509-375-2224 or Chris Rutland, University of Wisconsin, email rutland@engr.wisc.edu, phone 608-262-5853
- SCR technology – Darrell Herling, Pacific Northwest National Laboratory, email darrell.herling@pnl.gov, phone 509-375-6905 or Joe Bonadies, Delphi, email joseph.v.bonadies@delphi.com, phone 810-257-2074
- LNT technology and system integration – Stuart Daw, Oak Ridge National Laboratory, email dawcs@ornl.gov, phone 865-946-1341 or Dick Blint, General Motors, email richard.j.blint@gm.com, phone 586-596-4291
Tuesday, May 2nd, 2006
7:30 a.m. | Registration/Continental Breakfast | |
8:30 a.m. | Welcome and Introduction | |
9:00 a.m. | Invited Talk: Detailed Diesel Exhaust Particulate Characterization and Real Time DPF Filtration Efficiency and Regeneration Measurements | David Foster, University of Wisconsin - Madison |
10:00 a.m. | Coffee Break | |
10:15 a.m. | Comparative XPS and HRTEM of Real-World Soots | Randy Vander Wal, USRA (non-profit) |
10:45 a.m. | Use of the MTU 1D 2-layer CPF Model to Understand Filtration and Oxidation Characteristics of a DOC-CPF System | Kiran Premchand, Michigan Tech University |
11:15 a.m. | Modeling of Wall-flow Particulate Filters with Catalyst Zoning | Grigorios Koltsakis, Aristotle University Thessaloniki |
11:45 a.m. | On-Site Working Lunch (with discussions and Q&A on morning presentations) | |
1:00 p.m. | Methodology to Control the Uncontrolled DPF Regenerations | Rijing Zhan, Southwest Research Institute |
1:30 p.m. | Wall-Flow Filters with Wall-Integrated Oxidation Catalyst | Martin Votsmeier, Umicore |
2:00 p.m. | Relating Pore Scale DPF Models to Macroscopic Filter Behavior | Heather Dillon, Pacific Northwest National Laboratory |
2:30 p.m. | Coffee Break | |
2:45 p.m. | Advanced DPF loading monitoring with microwaves | Leslie Bromberg, MIT |
3:15 p.m. | Assessment Methodology for Diesel Particulate Filter Technologies | Athanasios Konstandopoulos, APT Lab, CERTH/CPERI |
3:45 p.m. | Invited Talk: Fuel and System Interaction Effects on Urea-SCR Control of NOx in Diesel Exhaust Aftertreatment | Ragini Acharya, Pennsylvania State University |
4:45 p.m. | Modeling the Impact of System Design Choices on DPF Performance | Matthew Henrichsen, Fleetguard Emission Solutions |
5:15 p.m. | CFD Modeling of Diesel Particulate Filter | Yong Yi, Fluent Inc. |
5:45 p.m. | Remarks on recent DPF studies in collaboration with Ford | Alan Mueleer, CD-Adapco |
6:00 p.m. | End of first day sessions | |
6:30 p.m. | No-Host Dinner |
Wednesday, May 3rd, 2006
8:00 a.m. | Registration/Continental Breakfast | |
8:30 a.m. | Welcome and Introduction | |
8:45 a.m. | Development of a DPNT Hybrid Model | Andrea Strzelec, UW-ERC/ORNL |
9:15 a.m. | Using an Integrated System Model to Simulate a Diesel Engine with Exhaust Aftertreatment | Stephen England, UW-ERC |
9:45 a.m. | Coffee Break | |
10:00 a.m. | Integrated Aftertreatment System Modeling Using GT-POWER | Syed Wahiduzzaman, Gamma Technologies Inc. |
10:30 a.m. | Invited Talk: Bosch Urea Dosing Approach for Future Emission Legislature for Light and Heavy Duty SCR Applications | Mansour Masoudi, Robert Bosch Corporation |
11:30 a.m. | Combined SCR/DPF System for Tier 2 LDT | Christine Lambert, Ford Research Labs |
12:00 noon | On-Site Working Lunch (with discussions and Q&A on morning presentations) | |
1:00 p.m. | Simulation and Optimization of DPF and SCR Systems | Roland Wanker, AVL |
1:30 p.m. | SCR of NOx with NH3 over Cu-ZSM-5. The Effect of Changing the Gas Composition | Louise Olsson, Chalmers University of Technology |
2:00 p.m. | Invited Talk: SCR Modeling and Simulation | Daniel Chatterjee, DaimlerChrysler AG |
3:00 p.m. | Coffee Break | |
3:15 p.m. | Mathemetical model development for the Urea SCR | Jeong Kim, Ford Motor Co. |
3:45 p.m. | On-board Ammonia Generation using Reformate | Mark Hemingway, Delphi |
4:15 p.m. | Evaluation of Supplier Catayst Formulations for the Selective Catalytic Reduction of NOx with Ammonia | Jong Lee, General Motors |
4:45 p.m. | LNT and SCR based NOx aftertreatment systems for the North American diesel market | Ulrich Goebel, Umicore AG & Co. KG |
5:15 p.m. | End of second day sessions | |
6:30 p.m. | No-Host Dinner |
Thursday, May 4th, 2006
8:00 a.m. | Registration/Continental Breakfast | |
8:30 a.m. | Welcome and Introduction | |
8:45 a.m. | Invited Talk: Kinetics and Mechanistic Studies of NOx Storage and Reduction on Model Pt/Ba/Alumina Catalysts | Michael Harold, University of Houston |
9:45 a.m. | Sulfation and Desulfation Studies of Lean NOx Traps | Josh Pihl, Oak Ridge National Laboratory |
10:05 a.m. | Coffee Break | |
10:20 a.m. | Assessing Monolith Length Effect on LNT Performance | Jae-Soon Choi, Oak Ridge National Laboratory |
10:40 a.m. | Experimental studies of N species selectivity during regeneration of lean NOx traps | Josh Pihl, Oak Ridge National Laboratory |
11:00 a.m. | Modeling Kinetics of NH3 and N2O Formation in Lean NOx Traps | Richard Larson, Sandia National Laboratories |
11:30 a.m. | On-Site Working Lunch (with discussions and Q&A on morning presentations) | |
12:30 p.m. | Invited Talk: Reductant Use and N-Byproduct Formation During Regeneration of a NSR Catalyst | William Epling, University of Waterloo |
1:30 p.m. | LNT Morphology Changes with Lean/Rich Cycling | Charles Peden, Pacific Northwest National Laboratory |
2:00 p.m. | Desulfation Chemistry Study of Reformate-Assisted Diesel NOx Traps | Ming-Cheng Wu, Delphi Research Labs |
2:30 p.m. | The Feasibility of an Alumina-Based Lean NOx Trap (LNT) for Diesel | Lifeng Xu, Ford Motor Company |
3:00 p.m. | Lean NOx Trap Modeling Based on Novel Measurement Techniques | Shawn Midlam-Mohler, Ohio State University |
3:30 p.m. | NOx Storage and Reduction over Pt Based Catalysts with Hydrogen as Reducing Agent - NH3 Formation and Influence of CO2 and H2O | Louise Olsson, Chalmers University of Technology |
4:00 p.m. | End of third day sessions |