![](https://iifiir-uploads.s3.fr-par.scw.cloud/conferencereport/5840/image/small-95d3b3114ff996ff271c74ffd2c94310.jpg)
Document IIF
Cristallisation d'eau dans un processus de surrefroidissement.
Water crystallisation at the supercooling breakdown.
Auteurs : RIBEIRO J. P., STRUB M., BEDECARRATS J. P., et al.
Résumé
Due to the concern of global warming and ozone depletion, all sectors of refrigeration must face new challenges such as energy improvement of the processes and limitation of the environmental impact. In this context, new technologies have been developed. One of them consists in using secondary refrigerant fluid such as ice slurry. Several technologies to produce ice slurries exist nowadays. A promising alternative to the actual ice slurry production systems is the supercooling concept under development in the laboratory. It consists in lowering the temperature of a water stream below the normal freezing point without ice forming. After leaving the evaporator, the supercooled water flow is physically disturbed in order to generate ice crystals. To control the performances of such a system, information on dynamic and thermal aspects of crystallization at the supercooling breakdown is necessary. In this context the study hereafter presents work about crystal growth when supercooling breakdown occurs. In a first part, an experimental method to determine the crystal propagation rate by temperatures statements is presented. A kinetic law is established and compared with the theory of Nash and Glicksman about the crystal growth at the supercooling breakdown. In a second part, a numerical simulation, based on thermal transfer during this phenomenon, is presented. The results from simulation are then compared with the results from experiments.
Documents disponibles
Format PDF
Pages : ICR07-B1-1282
Disponible
Prix public
20 €
Prix membre*
Gratuit
* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)
Détails
- Titre original : Water crystallisation at the supercooling breakdown.
- Identifiant de la fiche : 2007-2646
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Date d'édition : 21/08/2007
Liens
Voir d'autres communications du même compte rendu (839)
Voir le compte rendu de la conférence
-
Ice slurry generation process: apparatus for an...
- Auteurs : FRANK S., KIND M., KAUFFELD M.
- Date : 03/06/2009
- Langues : Anglais
- Source : 8th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
- Formats : PDF
Voir la fiche
-
Emulsión de hielo: proceso de generación y apar...
- Auteurs : FRANK S., KIND M., KAUFFELD M.
- Date : 11/2010
- Langues : Espagnol
- Source : Frío Calor Aire acondicionado - vol. 38 - n. 430
- Formats : PDF
Voir la fiche
-
Blockage by dendritic ice in supercooled encaps...
- Auteurs : MILÓN J. J., BRAGA S. L.
- Date : 02/08/2005
- Langues : Anglais
- Source : Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
- Formats : PDF
Voir la fiche
-
An evaporative style for dynamic ice-slurry pro...
- Auteurs : LI X., ZHANG X.
- Date : 14/07/2008
- Langues : Anglais
- Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
Voir la fiche
-
Ice slurry crystallisation based on a kinetic p...
- Auteurs : CHEGNIMONHAN V., JOSSET C., PEERHOSSAINI H.
- Date : 03/06/2009
- Langues : Anglais
- Source : 8th Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
- Formats : PDF
Voir la fiche