Today the Diesel particulate filter (DPF) has become state-of-the-art in passenger vehicles. This allows undershooting the current EU4 particulate matter (PM) limits by far, typically reaching EU5 level. In order to meet the future regulations (EU5 and EU6) a DPF will remain mandatory. Even if today's DPF technology is a major breakthrough regarding PM reduction of vehicles, there are also some technical challenges remaining. Among others some important issues are reductions of the fuel penalty that is resulting from the DPF operation, reduction of oil dilution to increase mechanical robustness and increase of the DPF regeneration safety, e.g. in very low-load driving profiles. Besides these challenges tomorrow's boundary conditions will be changed. Aside from a possible NOx aftertreatment the combustion system will be further developed. In this background the development of HCCI combustion systems (or related technologies such a partly HCCI) play an important role. Future combustion systems will significantly affect the DPF application, since these engines will comprise a different thermodynamic state and composition of the exhaust gas. As an even more important factor the soot morphology and soot reactivity will change. In order to solve today's drawbacks in DPF application and to meet future boundary conditions the EU funded project "IPSY" (Innovative particle trap system) was started. In the focus of this project is the research and development of an alternative DPF approach. Main motivation is the reduction of soot combustion temperature by the utilization of higher soot reactivity with HCCI combustion and also by a new filter design with internal heat recovery capability and an advanced multifunctional catalyst that enhances the catalytic soot conversion. In detail the project is setup with following steps: 1 Generation of a database for HCCI exhaust emissions and soot morphology (Istituto Motori, Italy; IFP, France) 2 Development of a new particulate trap system with enhanced catalytic effect (Aerosol and particle technology laboratory, Greece) 3 Setup of a detailed model for the new particulate trap with focus on the sootcatalyst contact and the influence of the soot morphology (Universidad Politecnica de Valencia, Spain; FEV Motorentechnik GmbH, Germany; Cracow University of Technology, Poland) 4 Development of an advanced operation and control strategy for the new system (Institute of combustion engines, University of Technology Aachen, Germany Universidad Politecnica de Valencia, Spain; FEV Motorentechnik GmbH, Germany) 5 Testing and investigation of the potential of the system (Fundaçion Cidaut, Spain; Universidad Politecnica de Valencia, Spain; IFP, France) The project is setup as a three-year project and the second period (year two) has just been completed. In the following the results that have been achieved so far and the status of the mentioned work packages are briefly summarized.
SPECIFIC TARGETED RESEARCH OR INNOVATION PROJECT - Contract n° TST5-CT-2006-031410 - Innovative Particle trap System for future Diesel combustion concepts - IPSY
Beatrice Carlo;Guido Chiara;
2010
Abstract
Today the Diesel particulate filter (DPF) has become state-of-the-art in passenger vehicles. This allows undershooting the current EU4 particulate matter (PM) limits by far, typically reaching EU5 level. In order to meet the future regulations (EU5 and EU6) a DPF will remain mandatory. Even if today's DPF technology is a major breakthrough regarding PM reduction of vehicles, there are also some technical challenges remaining. Among others some important issues are reductions of the fuel penalty that is resulting from the DPF operation, reduction of oil dilution to increase mechanical robustness and increase of the DPF regeneration safety, e.g. in very low-load driving profiles. Besides these challenges tomorrow's boundary conditions will be changed. Aside from a possible NOx aftertreatment the combustion system will be further developed. In this background the development of HCCI combustion systems (or related technologies such a partly HCCI) play an important role. Future combustion systems will significantly affect the DPF application, since these engines will comprise a different thermodynamic state and composition of the exhaust gas. As an even more important factor the soot morphology and soot reactivity will change. In order to solve today's drawbacks in DPF application and to meet future boundary conditions the EU funded project "IPSY" (Innovative particle trap system) was started. In the focus of this project is the research and development of an alternative DPF approach. Main motivation is the reduction of soot combustion temperature by the utilization of higher soot reactivity with HCCI combustion and also by a new filter design with internal heat recovery capability and an advanced multifunctional catalyst that enhances the catalytic soot conversion. In detail the project is setup with following steps: 1 Generation of a database for HCCI exhaust emissions and soot morphology (Istituto Motori, Italy; IFP, France) 2 Development of a new particulate trap system with enhanced catalytic effect (Aerosol and particle technology laboratory, Greece) 3 Setup of a detailed model for the new particulate trap with focus on the sootcatalyst contact and the influence of the soot morphology (Universidad Politecnica de Valencia, Spain; FEV Motorentechnik GmbH, Germany; Cracow University of Technology, Poland) 4 Development of an advanced operation and control strategy for the new system (Institute of combustion engines, University of Technology Aachen, Germany Universidad Politecnica de Valencia, Spain; FEV Motorentechnik GmbH, Germany) 5 Testing and investigation of the potential of the system (Fundaçion Cidaut, Spain; Universidad Politecnica de Valencia, Spain; IFP, France) The project is setup as a three-year project and the second period (year two) has just been completed. In the following the results that have been achieved so far and the status of the mentioned work packages are briefly summarized.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
