Numerical and Experimental Analysis of the Mass Transfer in Exhaust Gas Sensors 2007-01-1144
Within the scope of this work, the convective mass transfer to the zirconia sensor element of an exhaust oxygen sensor was analyzed experimentally and numerically. For the experimental setup, a heightened model of an oxygen sensor was built from Lucite® considering the similarity theory. Mass transfer is measured based on the absorption of ammonia and subsequent immediate color reaction.
For the numerical investigation, a three-dimensional model of the test rig was built. To predict the flow pattern and the species transport inside the protection tubes, the commercial CFD-Code FLUENT® is used. The model for the mass transfer to the surface is implemented through user-defined functions.
Citation: Brück, M., Mader, G., Piesche, M., and Klett, S., "Numerical and Experimental Analysis of the Mass Transfer in Exhaust Gas Sensors," SAE Technical Paper 2007-01-1144, 2007, https://doi.org/10.4271/2007-01-1144. Download Citation
Author(s):
Marc Brück, Gunda Mader, Manfred Piesche, Sascha Klett
Affiliated:
Institut für Mechanische Verfahrenstechnik, Universität Stuttgart, Robert Bosch GmbH
Pages: 11
Event:
SAE World Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Diesel Exhaust Emission Control Modeling, 2007-SP-2140
Related Topics:
Scale models
Test facilities
Sensors and actuators
Oxygen
Gases
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