Geometrical Optimisation of Diode-Based Calorimetric Thermal Flow Sensors through Multiphysics Finite Element Modelling
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Gardner, Ethan L https://orcid.org/0000-0002-0990-0481
Luca, Andrea De https://orcid.org/0000-0002-9481-4747
Falco, Claudio
Udrea, Florin
Abstract
For the first time, 3D multiphysics finite element modelling has been used to optimise the geometry of a calorimetric thermal flow sensor. The model involves and couples three physics domains: electric, thermal and fluid mechanics. The model is validated against experimental data obtained from a thermoelectronic flow sensor comprising of a tungsten heating resistor and temperature sensing diodes. Upstream and downstream diodes measure the temperature change caused by the asymmetric thermal profile when gas flow is introduced. The optimum distance between the diodes and the heater is shown along with the advantages of altering heater and membrane geometries, providing the knowledge for application-driven sensor optimisation.
Description
Keywords
4605 Data Management and Data Science, 46 Information and Computing Sciences, 40 Engineering
Journal Title
Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017
Conference Name
Eurosensors
Journal ISSN
2504-3900
2504-3900
2504-3900
Volume Title
1
Publisher
MDPI