Kinetic modeling of soot oxidation inside diesel particulate filter (DPF)
Emissions of particulate matter is a severe threat to the environment and human health. PM consist mostly of soot which is produced due to incomplete combustion. As a result of particulate emissions, diesel particulate filters (DPF) have become one of the main components in the exhaust after treatment system for diesel engines. Particulate matter is physically filtered by the porous wall of the material which results in formation of a cake layer on the wall, hence regeneration of the filter is necessary to regain the filter efficiency of the material. One of the main processes to regenerate the filter is oxidation of soot. Developing numerical models for particulate filter regeneration requires a good understanding of the soot oxidation process in combination with other transport processes. Dedicated experiments is also required to get accurate models with high predictive power. High quality models for DPF regeneration is key to lower fuel consumption and reduce CO2 emissions.
One objective of this project is to generate experimental data for kinetic modelling using synthetic soot, but in a realistic lab-scale DPF. Another objective is to validate existing kinetic model for soot oxidation and to propose improved mechanisms. The simulations will be performed using a commercial software, e.g. GT-SUITE and coupled to on-going research both at Chalmers and at Volvo group.
About you:
The project will be performed at Applied Mechanics, Chalmers in collaboration with Chemical reaction engineering and Volvo Group AB. The project is suitable for two students will the ability to work independently and creatively. Suitable Background is a Master’s program in Chemistry, Physics or Mechanics and knowledge in mathematical modelling. A strong interest of contributing to improved environment and human health is of course necessary.
Project start: At the latest January 2017.
Contact persons:
Jonas Sjöblom, Applied Mechanics, Chalmers
Telephone: +46 31772 13 89, E-mail:
Soheil Soltani, Chemistry and Chemical Engineering, Chalmers
Telephone: +46 31772 30 34, E-mail: