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Influencing Parameters on the Microwave-Based Soot Load Determination of Diesel Particulate Filters

Title data

Feulner, Markus ; Seufert, Florian ; Müller, Andreas ; Hagen, Gunter ; Moos, Ralf:
Influencing Parameters on the Microwave-Based Soot Load Determination of Diesel Particulate Filters.
In: Topics in Catalysis. Vol. 60 (2017) Issue 3 . - pp. 374-380.
ISSN 1572-9028

Project information

Project title:
Project's official title
Project's id
No information
MO 1060/6-2

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

Diesel Particulate Filters (DPF) are an essential part of today’s diesel exhaust gas aftertreatment systems. For an effective filter regeneration strategy, the precise knowledge of the actual trapped soot mass is essential. Besides the state-of-the-art technology of determining the soot load via pressure drop and/or model-based, a microwave-based method enables direct and in situ soot load detection. Thereby, an electric field is impressed into the filter housing and the power transmission is measured, which correlates with the soot load. In this study, influencing parameters, especially temperature and humidity, are examined and compared to the sensitivity towards soot accumulation. Measurements were conducted in a laboratory test bench with a filter-core, which had been previously loaded with soot in an engine dynamometer. While humidity does not have a notable effect, the influence of temperature needs to be considered for real world application. Finally, a complete filter regeneration of the DPF-core in the laboratory test bench could be monitored with the microwave-based system. The carbon balance-derived burned soot mass coincides very well with the microwave derived transmission parameter.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Research Centres > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions > Research Units > BERC - Bayreuth Engine Research Center
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 07 Apr 2017 08:30
Last Modified: 17 Oct 2022 12:04