SAE 2013 Fuels, Lubricants, and Aftertreatment Symposium: Achieving Fuel Economy and GHG Targets

Technical Session Schedule

Wednesday, November 20

Emissions Control: Heavy Duty Exhaust Systems
(Session Code: FLE303)

Room Regency A  3:30 p.m.

The heavy duty exhaust system session will focus on the development of emissions control systems for dyno certified medium and heavy duty engines. Expert panelists from engine manufacturers and heavy duty truck manufacturers will discuss strategies for the design, development, and application of heavy duty aftertreatment systems which are capable of simultaneously meeting future criteria pollutant emissions standards, while enabling the engine to meet the legislated greenhouse gas emissions limits.

Moderators - Mansour Masoudi, Emissol

Time Paper No. Title
3:30 p.m. ORAL ONLY
Heavy Duty Engine System Optimization to Meet Future GHG Emissions Regulations
As a result of future regulations, the next generation of heavy duty engine systems will need to meet lower greenhouse gas and fuel consumption standards while maintaining the current near zero criteria pollutant emission levels. Technology advances will need to be utilized and integrated into an optimized powertrain system with exhaust emission control integration as one of the key areas. This presentation will discuss the link between regulatory structure, engine system technology development, and the needed system optimization to successfully achieve more stringent greenhouse gas and fuel consumption standards for commercial vehicles.
Gary Salemme, Cummins Inc.
3:45 p.m. ORAL ONLY
Changing Emission Strategies for Improved Reliability and Performance
Navistar changed emission control strategies about 12 months ago to SCR systems. This transformation required changing exhaust systems, cooling systems, fueling systems, a major recalibration effort, including both the engine and the aftertreatment systems, and an intense validation effort. The highlights of this transformation are presented in this talk.
Kirby Chapman, Navistar
4:00 p.m. ORAL ONLY
HDD Systems: Control of NOx and N2O
A concerted effort by OEMs, system integrators and catalyst suppliers is underway to develop HDD exhaust emission systems with high NOx conversion efficiencies, very low N2O emissions while meeting packaging constraints. We will discuss how the catalyst components can be tailored to interact constructively to achieve targeted emissions in a cost effective way.
Patrick Burk, BASF Corp.
4:15 p.m. ORAL ONLY
Scania Euro 6 Aftertreatment System
In 2008, Scania started to develop an exhaust aftertreatment system for Euro 6. At that time the conditions for the World Harmonised Transient Cycle (WHTC) were set and the limit for NOx was decided to 400 mg/kWh, including deterioration factors and particulate matter limited to 10 mg/kWh. However, the level of particulate counting was still under debate. Later on, the particulate count limit was set to 0.6 Tera# in WHTC, virtually prescribing wall-flow particulate filters. For Euro 5, Scania had taken the decision to go for heavy EGR with a two-stage EGR cooling solution enabling Euro 5 without SCR. But for Euro 6, it was obvious that EGR alone would not be a successful technical strategy. Therefore, a development project was launched to develop an exhaust aftertreatment system for Euro 6 based on SCR-technology. In 2011, Scania, as the first OEM in the heavy truck industry, launched a ready-to-order truck fulfil EUVI emission standards. This first launch included a combination of EGR and SCR; in 2012 a further optimised SCR-only technology was launched. This translates into a wide choice of fuel efficient technologies available to the customer.
Henrik Birgersson, Scania CV AB
4:30 p.m. Panel