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Simulation of a thermoelectric gas sensor to determine hydrocarbons in exhaust gases and to characterize catalyst materials

Title data

Ritter, Thomas ; Wiegärtner, Sven ; Hagen, Gunter ; Moos, Ralf:
Simulation of a thermoelectric gas sensor to determine hydrocarbons in exhaust gases and to characterize catalyst materials.
2017
Event: Sensor 2017 : 18th International Conference on Sensors and Measurement Technology , 30.05.-01.06.2017 , Nürnberg, Deutschland.
(Conference item: Conference , Poster )
DOI: https://doi.org/10.5162/sensor2017/P5.7

Official URL: Volltext

Abstract in another language

To determine the hydrocarbon (HC) concentration by an exhaust gas sensor, the thermoelectric sensing principle can be applied. A planar thermopile structure on a ceramic substrate enables measuring a temperature difference between a catalyst-coated and an inert area on the sensor. Exothermic reactions cause a temperature increase in the catalyst-coated area that can be measured as a voltage output of the thermopile. Temperature modulation of the overall sensor temperature allows for catalyst material characterization or even for differentiation between different HCs as the conversion behavior of the catalysts depends differently on temperature. The sensing principle is modeled by coupling the dominating physical effects. This allows very precise predictions that may further enhance the sensor performance.

Further data

Item Type: Conference item (Poster)
Refereed: Yes
Additional notes: Chapter P5 - Gas, Chemo and Biosensors
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 > BERC - Bayreuth Engine Research Center
Faculties
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: 26 Jun 2017 09:05
Last Modified: 26 Jun 2017 09:05
URI: https://eref.uni-bayreuth.de/id/eprint/38167