ESPCI web site
PMMH’s weekly seminar is held every Friday at 11 am (map)
Alice Pelosse
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH – Christophe Gissinger (LPENS)
Thermoelectricity at liquid interfaces
Thermoelectricity refers to the direct conversion of a temperature difference into an electric current (Seebeck effect), and vice versa. In conventional solid-state devices, this mechanism is generally limited by the essentially linear relationship between the generated current and the applied temperature difference, as well as by the electronic properties of semiconductor materials, which constrain the maximum size of such systems.
In this seminar, I will present the experimental evidence of a new thermoelectric mechanism occurring at the interface between two electrically conducting fluids subjected to a thermal gradient. This phenomenon results from the nonlinear coupling between the Seebeck effect and turbulent thermal convection developing in the fluid layers. The experiments reveal the spontaneous emergence of intense electric current loops, with current densities about one order of magnitude larger than those found in conventional solid-state thermoelectric devices.
These results illustrate how hydrodynamics can modify the Seebeck effect and open the way to a new class of liquid thermoelectric devices, with potential applications in high-power electronics cooling and energy storage technologies.
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Recent seminars (11)
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Séminaire PMMH – Pas de séminaire
Vendredi 6 mars de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Pas de séminaire
Vendredi 6 mars de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Pas de séminaire
Vendredi 27 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Michiko Shimokawa (U. Nara, Japon)
Vendredi 20 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Stéphane Dorbolo (U. Liège)
Vendredi 13 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Stéphane Dorbolo (U. Liège)
Vendredi 13 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Emmanuel Villermaux (IRPHÉ, Marseille)
Vendredi 6 février de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Émilien Dilly (LiPhy, Grenoble)
Vendredi 30 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Émilien Dilly (LiPhy, Grenoble)
Vendredi 30 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
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Séminaire PMMH – Quentin Glorieux (Laboratoire Kastler Brossel)
Vendredi 23 janvier de 11h00 à 12h00 - Salle réunion PMMH 1
The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Link to cofee seminar (internal, every Thursday)
