Radiative thermal rectification using superconducting materials - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Applied Physics Letters Année : 2014

Radiative thermal rectification using superconducting materials

E. Nefzaoui
Karl Joulain
Jérémie Drevillon
Younes Ezzahri

Résumé

Thermal rectification phenomenon is a manifestation of an asymmetry in the heat flux when the temperature difference between two interacting thermal reservoirs is reversed. In this letter, we present a far-field radiative thermal rectifier based on high temperature superconducting materials with a rectification ratio up to 80%. This value is among the highest reported in literature. Two configurations are examined : a superconductor (Tl2Ba2CaCu2O8) exchanging heat with 1) a black body and 2) another superconductor, YBa2Cu3O7 in this case. The first configuration shows a higher maximal rectification ratio. Besides, we show that the two superconductors rectifier exhibits different rectification regimes depending on the choice of the reference temperature, i.e. the temperature of the thermostat. Presented results might be useful for energy conversion devices, efficient cryogenic radiative insulators engineering and thermal logical circuits development.
Fichier principal
Vignette du fichier
1312.3758.pdf (436.5 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01543706 , version 1 (21-06-2017)

Identifiants

Citer

E. Nefzaoui, Karl Joulain, Jérémie Drevillon, Younes Ezzahri. Radiative thermal rectification using superconducting materials. Applied Physics Letters, 2014, 104 (10), pp.103905. ⟨10.1063/1.4868251⟩. ⟨hal-01543706⟩
72 Consultations
104 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More