http://www.cnr.it/ontology/cnr/individuo/prodotto/ID36530
Thermofluid Analysis of Ultra Low Power Hotplates for a MOX Gas Sensing Device (Articolo in rivista)
- Type
- Label
- Thermofluid Analysis of Ultra Low Power Hotplates for a MOX Gas Sensing Device (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1109/JSEN.2009.2015016 (literal)
- Alternative label
Messina M, Franze F, Speciale N, Cozzani E, Roncaglia A (2009)
Thermofluid Analysis of Ultra Low Power Hotplates for a MOX Gas Sensing Device
in IEEE sensors journal
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Messina M, Franze F, Speciale N, Cozzani E, Roncaglia A (literal)
- Pagina inizio
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- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Univ Bologna, Dept Elect Comp Sci & Syst, I-40136 Bologna, Italy
2. Natl Res Council Italy, IMM, Bologna Unit, I-40129 Bologna, Italy (literal)
- Titolo
- Thermofluid Analysis of Ultra Low Power Hotplates for a MOX Gas Sensing Device (literal)
- Abstract
- This work presents a full three-dimensional finite-element multiphysics simulation of the conjugate heat transfer for a gas sensing device composed by a two-element array of ultra low power (ULP) metal oxide semiconductor (MOX) sensors operated in a miniaturized sampling chamber. The heat equation in a solid, the Poisson equation for the electric potential and the incompressible Navier-Stokes and energy equations for a fluid have been solved in a coupled manner. Validation of the simulation results has been performed comparing the simulated power dissipated by the array with a set of experimental data under different operating conditions. A maximum relative error of less than 7% between the simulations and the experiments has been obtained without application of any fitting strategy on the physical properties. A negligible effect on the power dissipated by the sensor, in presence of volumetric fluxes in the sampling chamber, has been observed both numerically and experimentally. Finally, a real operational condition has been simulated and examined. (literal)
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