Energy study of CO2 hydrate slurries formation in a tank reactor

Etude énergétique des coulis d'hydrates de CO2 dans un réacteur de formation

Oignet, J. ; Delahaye, A. ; Dufour, T. ; Hoang, H.M. ; Clain, P. ; Fournaison, L.

Type de document
Communication scientifique avec actes
Langue
Anglais
Affiliation de l'auteur
IRSTEA ANTONY UR GPAN FRA ; IRSTEA ANTONY UR GPAN FRA ; IRSTEA ANTONY UR GPAN FRA ; IRSTEA ANTONY UR GPAN FRA ; IRSTEA ANTONY UR GPAN FRA ; IRSTEA ANTONY UR GPAN FRA
Année
2015
Résumé / Abstract
The work performed at Irstea investigates the use of CO2 hydrates slurries as phase change materials. A tank with a pilot loop is used to form slurries by subcooling. Several studies (thermal, rheological) were carried out to evaluate slurries characteristics useful for a complete energy study of the system. The aim of this paper is to present the modelling of a device for hydrate slurries formation including a tank reactor and a loop. Finite volume method with implicit time discretization scheme is used. This model allows predicting the slurry temperature evolution; it is validated by experimental data on a hydrate formation during a cooling process. The energy balance is performed to evaluate the storage efficiency and the heat losses through the reactor wall.
Congrès
ICR2015 - 24e Congrès International du Froid de l'IIF, 16/08/2015 - 22/08/2015, Yokohama, JPN

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