Abstract
After-treatment systems consisting of new catalyst technologies and particulate filters will be indispensable to meet increasingly stringent global regulations limiting particulate matter (PM) and NOx emissions from heavy duty and light duty diesel vehicles. Diesel particulate filter (DPF) has been established as a key technology in reducing diesel particulate emission. But particulate filtering characteristics in a DPF have not been fully understood yet. We investigated effects of particle size and particulate load on particle trapping efficiency in a DPF both by flow reactor experiments and computer simulations for the purpose of developing high-performance DPF. In a flesh DPF, the dominant particle trapping mechanism transferred from the Brownian diffusion to the interception at around 200 nm in particle diameter, and these particles showed the lowest particle trapping efficiency. Particle size dependency of the particle trapping efficiency disappeared when PM accumulated in a DPF. These results led to availability of DPF for the reduction of diesel nanoparticles.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
