Change search
ReferencesLink to record
Permanent link

Direct link
Acoustic two-port simulation model for the particle oxidation catalyst (POC®)
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL. KTH, School of Industrial Engineering and Management (ITM), Centres, Competence Center for Gas Exchange (CCGEx).ORCID iD: 0000-0001-7898-8643
2014 (English)In: INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, 2014Conference paper (Refereed)
Abstract [en]

The reduction of the exhaust noise from internal combustion engine (IC-engine) is mainly managed by proper silencer design, while less attention is paid to the acoustic performance of the after treatment devices (ATD). It is known from the earlier studies, that the transmission loss of a typical ATD unit can be quite significant. An ATD unit for diesel engines is classically assembled from several specific parts such as selective catalytic reducers (SCR), diesel oxidation catalysts (DOC) and diesel particulate filters (DPF). One new alternative to the conventional DPF is the particle oxidation catalyst (POC®). The substrate used in the POC-X type filter consists of fine, corrugated metallic wire mesh screens piled askew and rolled into a cylindrical shape. In this paper an acoustic two-port simulation model for POC-X is sought starting from the classical Kirchhoff solution for prediction of the acoustic wave attenuation in narrow channels. According to experimental studies, correction factors to the narrow channel two-port model are proposed.

Place, publisher, year, edition, pages
Keyword [en]
Particle oxidation catalyst, Two-port
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-168547ScopusID: 2-s2.0-84923584526ISBN: 978-090988203-7OAI: diva2:817938
43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014; Melbourne; Australia

QC 20150608

Available from: 2015-06-08 Created: 2015-06-04 Last updated: 2015-06-08Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Åbom, Mats
By organisation
Marcus Wallenberg Laboratory MWLCompetence Center for Gas Exchange (CCGEx)
Fluid Mechanics and Acoustics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 20 hits
ReferencesLink to record
Permanent link

Direct link