Document IIF
Etude expérimentale du transfert de chaleur lors de l'écoulement et de convection du dioxyde de carbone surcritique dans un tube horizontal pendant le refroidissement.
Experimental investigation of flow and convection heat transfer of supercritical carbon dioxide in a horizontal tube during cooling.
Auteurs : ZHAO C. R., JIANG P. X.
Résumé
The frictional pressure drop and the heat transfer coefficients for carbon dioxide at supercritical pressures were measured in a horizontal small tube during cooling. The axially-averaged heat transfer coefficients reached to a maximum when the bulk temperature was near the pseudo-critical temperature. The local heat transfer coefficients were determined through a combination of experimental measurements and numerical simulations. The experiments were conducted at various CO2 mass fluxes, inlet temperatures and system pressures. Petukhov's equation reasonably predicts the frictional pressure drop for the conditions in these experiments. The local convection heat transfer was greatly intensified when the wall temperature was near the pseudo-critical temperature and the bulk temperature was slightly higher than the pseudo-critical temperature.
Documents disponibles
Format PDF
Pages : 2009-5
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 : Experimental investigation of flow and convection heat transfer of supercritical carbon dioxide in a horizontal tube during cooling.
- Identifiant de la fiche : 2009-1965
- Langues : Anglais
- Source : 3rd Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Date d'édition : 23/06/2009
Liens
Voir d'autres communications du même compte rendu (66)
Voir le compte rendu de la conférence
Indexation
-
Thèmes :
Transfert de chaleur;
CO2 - Mots-clés : Tube horizontal; Mesure; Transfert de chaleur; Refroidisseur de gaz; Experimentation; Écoulement; Cycle transcritique; CO2; Chute de pression
-
Etude expérimentale sur les caractéristiques de...
- Auteurs : FU M., LV J., QIN N.
- Date : 03/2007
- Langues : Chinois
- Source : Refrigeration - vol. 26 - n. 1
Voir la fiche
-
Experimental study on cooling heat transfer of ...
- Auteurs : KOYAMA S., HIGAHIIUE S., KUWAHARA K., et al.
- 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
-
Characteristics of cooling heat transfer and pr...
- Auteurs : KOYAMA S., KUWAHARA K., LEE S. M., et al.
- Date : 21/05/2006
- Langues : Anglais
- Source : ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
Voir la fiche
-
Condensation of CO2 at low temperatures in micr...
- Auteurs : ZILLY J., JANG J., HRNJAK P.
- Date : 17/08/2003
- Langues : Anglais
- Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
- Formats : PDF
Voir la fiche
-
Heat transfer characteristics of supercritical ...
- Auteurs : DANG C., IINO K., HIHARA E., et al.
- Date : 07/09/2008
- Langues : Anglais
- Source : 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
Voir la fiche