Design Techniques to Improve the Performances of Metal Supported Flow-Through Particulate Traps: an Experimental and Numerical Approach

Soot filtration represents a major problem for the complete exploiting of Diesel engines characteristics in terms of global efficiency and CO₂ emissions. Even though the engines development in the last years let the engine performances improve, exhaust gas after treatment is still required to respect the foreseen limits for soot and NO_x emissions.

A flow-through particle trap has been presented with a great potential in soot removal without major penalties in terms of exhaust back pressure. The device performance is strictly connected to channel geometry. This paper deals with that relation by means of an experimental-numerical approach.