Simulation of a thermoelectric gas sensor that determines hydrocarbon concentrations in exhausts and the light-off temperature of catalyst materials
Thomas Ritter,Sven Wiegärtner,Gunter Hagen,and Ralf Moos
Thomas Ritter
Bayreuth Engine Research Center (BERC), Zentrum für Energietechnik
(ZET), Department of Functional Materials, University of Bayreuth, 95447
Bayreuth, Germany
Sven Wiegärtner
Bayreuth Engine Research Center (BERC), Zentrum für Energietechnik
(ZET), Department of Functional Materials, University of Bayreuth, 95447
Bayreuth, Germany
Gunter Hagen
Bayreuth Engine Research Center (BERC), Zentrum für Energietechnik
(ZET), Department of Functional Materials, University of Bayreuth, 95447
Bayreuth, Germany
Bayreuth Engine Research Center (BERC), Zentrum für Energietechnik
(ZET), Department of Functional Materials, University of Bayreuth, 95447
Bayreuth, Germany
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A planar thermoelectric gas sensor is modeled. By coupling all influences (fluid flow, gas diffusion, heat transfer, chemical reactions, and electrical properties) a model was set up that mirrors the sensor behavior precisely, as the comparison with experimental data shows. The coupling of 3-D and 1-D geometry enables to calculate the temperature distribution, fluid flow, and the gas concentration distribution in the 3-D model, while the chemical reactions are very accurately calculated in 1-D.
A planar thermoelectric gas sensor is modeled. By coupling all influences (fluid flow, gas...
