Document IIF
Etude de l'écoulement du dioxyde de carbone transcritique à l'intérieur de tubes capillaires adiabatiques.
A study of transcritical carbon dioxide flow through adiabatic capillary tubes.
Auteurs : SILVA D. L. da, HERMES C. J. L., MELO C., et al.
Type d'article : Article, Article de la RIF
Résumé
This paper advances a study of the transcritical expansion of carbon dioxide (R744, CO2) through adiabatic capillary tubes. The influence of both operating conditions (inlet and exit pressures, inlet temperature) and tube geometry (capillary diameter and tube length) on the CO2 mass flow rate was experimentally evaluated using a purpose-built testing facility with a strict control of the measured variables. A dimensionless correlation to predict the refrigerant mass flow rate as a function of tube geometry and operating conditions was developed. In addition, a theoretical model was put forward based on the mass, energy and momentum conservation principles. The model results were compared with experimental data, when it was found that the model predicts 95% of the measured refrigerant mass flow rate within an error band of plus or minus 10%. The model was also employed to advance the knowledge about the transcritical carbon dioxide flow through adiabatic capillary tubes.
Documents disponibles
Format PDF
Pages : 978-987
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 : A study of transcritical carbon dioxide flow through adiabatic capillary tubes.
- Identifiant de la fiche : 2009-1517
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 5
- Date d'édition : 08/2009
Liens
- Liens externes :
Voir d'autres articles du même numéro (38)
Voir la source
Indexation
-
Algebraic solution of transcritical carbon diox...
- Auteurs : HERMES C. J. L., SILVA D. L. da, MELO C., et al.
- Date : 08/2009
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 5
- Formats : PDF
Voir la fiche
-
Experimental and numerical analysis of transcri...
- Auteurs : MELO C., HERMES C. J. L., SILVA D. L. da, et al.
- Date : 23/06/2009
- Langues : Anglais
- Source : 3rd Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
Voir la fiche
-
Transcritical carbon dioxide flow through adiab...
- Auteurs : HERMES C. J. L., SILVA D. L., MELO C., et al.
- Date : 07/09/2008
- Langues : Anglais
- Source : 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
Voir la fiche
-
Study of capillary tubes in a transcritical CO2...
- Auteurs : MADSEN K. B., POULSEN C. S., WIESENFARTH M.
- Date : 01/08/2004
- Langues : Anglais
- Source : Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
- Formats : PDF
Voir la fiche
-
Simulation of the flow of carbon dioxide in cap...
- Auteurs : CAO X. L., YU S. X.
- Date : 21/08/2007
- Langues : Anglais
- Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
Voir la fiche