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Geometrical Optimisation of Diode-Based Calorimetric Thermal Flow Sensors through Multiphysics Finite Element Modelling

Published version
Peer-reviewed

Type

Conference Object

Change log

Authors

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

Volume Title

1

Publisher

MDPI