Partager

Document IIF

La stabilité en surfusion des composites de trihydrate d’acétate de sodium dans plusieurs unités de stockage thermique.

Supercooling stability of sodium acetate trihydrate composites in multiple heat storage units.

Numéro : pap. 0031

Auteurs : DANNEMAND M., FURBO S.

Résumé

Keeping sodium acetate trihydrate (SAT) in supercooled state can be utilized to store heat loss free over long periods. The main risk with this technology is that the SAT may crystalize spontaneously and release the stored heat before desired. A test rig with 10 marketed heat storage units with water and 35 kg sodium acetate trihydrate composite was built and multiple heating and cooling cycles were carried out with the units. It was monitored if the sodium acetate trihydrate remained supercooled in the 3 days storage period or if the solidification started spontaneously. The units were charged with an inlet temperature of 87°C, and then discharged with inlet temperatures of 14°C, 22°C, 28°C or 35°C. Spontaneous solidifications occurred more frequently during discharge in the test cycles with lower discharge temperatures compared to higher inlet temperatures.

Documents disponibles

Format PDF

Pages : 227-231

Disponible

  • Prix public

    10 €

  • Prix membre*

    7,50 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Supercooling stability of sodium acetate trihydrate composites in multiple heat storage units.
  • Identifiant de la fiche : 30023800
  • Langues : Anglais
  • Source : 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Orford, Canada, May 21-23, 2018.
  • Date d'édition : 21/05/2018
  • DOI : http://dx.doi.org/10.18462/iir.pcm.2018.0031
  • Notes :

    NB : Cet article est en tarif réduit, car un sous-titre et quelques mots sont manquants, page 229 (3ème page de l'article).


Liens


Voir d'autres communications du même compte rendu (52)
Voir le compte rendu de la conférence

Indexation