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2021 CLEERS Virtual Workshop
2021-09-13 - 2021-09-17
Overview
CLEERS Workshops are annual meetings open to all those who are interested in understanding and simulating the performance of exhaust emission control devices under realistic operating conditions. The Workshops provide an informal, focused forum to:
- share recent experimental and computational simulation experience with advanced aftertreatment technologies;
- enhance emissions control research collaborations among industry, universities, and DOE national laboratories; and
- identify the most pressing pre-competitive research priorities for emissions control.
CLEERS Workshops feature invited presentations by internationally prominent researchers and a moderated discussion with an invited panel of industry experts.
Workshop participants are encouraged to contribute oral presentations and posters on the following (or related) technologies and topics.
Topic AreasTechnologies:
- Passive NOx adsorbers (PNA)
- Hydrocarbon traps
- Selective catalytic reduction (SCR) of NOx by urea/ammonia
- Oxidation catalysts (DOC, MOC, etc.)
- Three-way catalysts (TWC)
- Diesel and gasoline particulate filters (DPF, GPF)
- Selective catalytic reduction of NOx by hydrocarbons (HC SCR)
- Ammonia slip catalysts (ASC)
Topics:
- Identification of reaction mechanisms (from micro-kinetic through global) and kinetic parameters
- Modeling strategies for improved accuracy and/or reduced computation time
- Drive cycle simulations of advanced vehicle/emissions control systems
- Formulation, evaluation, and simulation of catalysts with lower operating temperatures
- Multifunctional aftertreatment devices: catalyst coated filters, layered/zoned washcoats
- Integration of engines and emissions controls
- Durability
- Reductant (urea or fuel) delivery: spray modeling, decomposition processes, deposit formation
- Measurement of engine-out emissions
- Real-world emissions
- Thermal management technologies and strategies
- Effects of net-zero carbon fuels on engine emissions and catalyst performance
2021 CLEERS Virtual Workshop Agenda
Monday, September 13th (all times listed are Eastern Time)
11:00 a.m. | Welcome and Introduction | |
11:05 a.m. | Invited Presentation: Continuing Progress Towards 2027 Low NOx Targets – Update on Demonstration Efforts at SwRI | Christopher Sharp, Southwest Research Institute |
11:55 a.m. | Close-coupled SCR: An approach to meet ultra-low NOx requirements for heavy-duty diesel engines | John Kasab, AVL Powertrain Engineering Inc. |
12:20 p.m. | Break | |
12:50 p.m. | Comparative evaluation of ammonium carbamate and UWS based SCR system for diesel engine NOX reduction under WHTC | Hassan Raza, Korea Institute of machinery and materials (KIMM), South Korea |
1:15 p.m. | Can a heat exchanger improve the cold-start performance of a PNA–SCR system for NOx abatement? | Petr Koci, University of Chemistry and Technology, Prague, Czech Republic |
1:40 p.m. | Detailed hydrocarbon speciation of GDI cold-start exhaust emissions and use of HC-traps on current light-duty trucks | Melanie DeBusk, Oak Ridge National Laboratory |
2:05 p.m. | Break | |
2:35 p.m. | Panel Discussion: Aftertreatment Catalyst Durability: Information Gaps and Future Needs | Tom Pauly, Umicore Autocat USA Inc. Danan Dou, John Deere Alissa Recker, Daimler Christine Lambert, Ford Research & Advanced Engineering |
4:15 p.m. | End of first day sessions |
Tuesday, September 14th (all times listed are Eastern Time)
Wednesday, September 15th (all times listed are Eastern Time)
Thursday, September 16th (all times listed are Eastern Time)
Friday, September 17th (all times listed are Eastern Time)
The 2021 CLEERS Workshop will be held September 13-17, 2021 as a virtual event. The Workshop will be hosted on the Zoom virtual platform. Each talk will be presented live via a Zoom meeting at the designated time listed on the Workshop agenda. Instructions on connecting to the Zoom meeting will be emailed to the address provided during registration.
For any questions related to the Workshop, send email to the 2021 CLEERS Workshop Organizing Committee (workshop2021@cleers.org).
Workshop Dates: | September 13-17, 2021 |
Deadline to submit contributed presentation and poster abstracts: | May 17, 2021 |
Extended deadline to submit contributed presentation and poster abstracts: | May 31, 2021 |
Authors notified of abstract acceptance: | July 16, 2021 |
Registration Deadline: | August 31, 2021 |