Building of a life size testing unit for air conditionning by using TBAB hydrate slurry as a secondary two-phase refrigerant - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2011

Building of a life size testing unit for air conditionning by using TBAB hydrate slurry as a secondary two-phase refrigerant

Résumé

A complete air-conditioning system was built in the "Ecole Nationale Supérieure des Mines" of Saint-Etienne (France). This prototype stands both for a testing unit and for a life-size application. In this installation circulates a crystallized TBAB aqueous solution which presents the ideal physical characteristics for air-conditioning: a melting point adjustable between 0 and 12.3°C and a high latent heat of melting. During the night, the TBAB hydrate slurry is generated and stored in a tank. In the daytime, this slurry is supplied to the air-conditioning heat exchangers. The prototype is instrumented in order to check the energy balances, to study the rheological properties and to monitor the sedimentation in the storage tank. Therefore, a numerical model was proposed to predict the evolution of the hydrates stock in the tank and the available cooling power in function of the tank geometry and the operating conditions. It takes into account hydrate settling, fluid circulation, hydrates formation (in generator) and hydrates melting. Also, we are designing a new type of hydrates generator based on a formation of TBAB-CO2 semi-clathrates that is dissociated in TBAB hydrates in a second step.
Fichier principal
Vignette du fichier
ICGH-JD-440-Orig.pdf (2.76 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00617456 , version 1 (29-08-2011)

Identifiants

  • HAL Id : hal-00617456 , version 1

Citer

Jérôme Douzet, Pedro Brantuas, Jean-Michel Herri. Building of a life size testing unit for air conditionning by using TBAB hydrate slurry as a secondary two-phase refrigerant. 7th International Conference on Gas Hydrates (ICGH 2011), Jul 2011, Edimbourg, United Kingdom. pp.440. ⟨hal-00617456⟩
109 Consultations
184 Téléchargements

Partager

Gmail Facebook X LinkedIn More