Document IIF
Etude expérimentale sur le transfert de chaleur lors de l'ébullition en écoulement des mélanges de CO2 et d'huiles à l'intérieur d'un tube horizontal.
An experimental study on flow boiling heat transfer of carbon dioxide and oil mixtures inside a horizontal tube.
Résumé
The boiling heat transfer characteristics of carbon dioxide (CO2) inside a horizontal tube were investigated experimentally. The test section was a horizontal smooth stainless steel tube, 3 mm in inner diameter and 2.185 m in length. When the circulation ratio of lubricating oil is less than 0.1 wt.%, the flow boiling heat transfer is considered to be dominated by convective evaporation in the case of the saturation temperature of -7 °C. In the case of a saturation temperature of 10 °C, the flow boiling heat transfer is considered to be dominated by nucleate boiling. When the circulation ratio of lubricating oil was more than 1 wt.%, the local heat transfer coefficient was much lower than that in the case without the oil. This decrease is considered to be due to the nucleate boiling being suppressed by the oil film. Therefore the flow boiling heat transfer is considered to change from a nucleate-boiling-dominated regime to convective evaporation dominated regime. The dryout quality decreased with increase in mass velocity, and was a slightly influenced by the differences in the saturation temperature and the oil circulation ratio.
Documents disponibles
Format PDF
Pages : 2005-3
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 : An experimental study on flow boiling heat transfer of carbon dioxide and oil mixtures inside a horizontal tube.
- Identifiant de la fiche : 2006-0585
- Langues : Anglais
- Source : Commercial Refrigeration. Thermophysical Properties and Transfer Processes of Refrigerants. Proceedings of the IIR International Conferences.
- Date d'édition : 02/08/2005
Liens
Voir d'autres communications du même compte rendu (140)
Voir le compte rendu de la conférence
Indexation
-
Experimental investigation for flow boiling of ...
- Auteurs : KOYAMA S., ITO D., LEE S. M., et al.
- 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
-
Etude expérimentale sur l'ébullition en écoulem...
- Auteurs : KOYAMA S., ITO D., LEE S. M., et al.
- Date : 2005
- Langues : Japonais
- Source : Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 22 - n. 4
Voir la fiche
-
Flow boiling heat transfer of carbon dioxide wi...
- Auteurs : LI M., DANG C., HIHARA E.
- Date : 05/2014
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 41
- Formats : PDF
Voir la fiche
-
Effect of lubricating oil on boiling heat trans...
- Auteurs : DANG C., HARAGUCHI N., YAMADA T., et al.
- Date : 29/05/2006
- Langues : Anglais
- Source : 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Formats : PDF
Voir la fiche
-
Discussions on prediction methods of evaporatio...
- Auteurs : GAO L., SATO M., MATSUSAKA Y., et al.
- Date : 20/05/2009
- Langues : Anglais
- Source : ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
- Formats : PDF
Voir la fiche