Résumé
This paper reports visualization results of two-phase flow of R1233zd(E) and R1336mzz(Z) in a 24port microchannel tube. The tube has an averaged hydraulic diameter of 0.643 mm. Mass flux is in the range from 50 to 200 kg-m-2s-1. Flow patterns are classified as plug/slug, transitional, and annular flow. In plug/slug flow, a clear interface between liquid slug and vapor plug is observed. In transitional flow, the interface between vapor plug and liquid slug is broken and becomes a thick liquid ring and vapor bridge. In annular flow, only liquid film is observed in the tube. Both mass flux and vapor density strong affect the flow pattern because they affect the flow velocity. The results are compared to other fluids tested on the same facility: R32, R134a, R1234ze(E), and R1234yf. R134a, R1234ze(E), and R1234yf have similar flow patterns at the same condition. Both R1233zd(E) and R1336mzz(Z) also have similar flow patterns because they have similar properties.
Documents disponibles
Format PDF
Pages : 8
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 : Flow patterns of some new low GWP refrigerants during evaporation in small tube.
- Identifiant de la fiche : 30026085
- Langues : Anglais
- Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Date d'édition : 24/08/2019
- DOI : http://dx.doi.org/10.18462/iir.icr.2019.1252
Liens
Voir d'autres communications du même compte rendu (632)
Voir le compte rendu de la conférence
Indexation
-
Thèmes :
HFC;
Ecoulement diphasique - Mots-clés : Écoulement diphasique; Saturation; Microcanal; Tube; R1336mzz(Z); R1233zd(E); HFO; Haute température; Experimentation
-
Experimental comparison of HCFO and HFO R1224yd...
- Auteurs : ARPAGAUS C., BERTSCH S. S.
- Date : 05/2021
- Langues : Anglais
- Source : 2021 Purdue Conferences. 18th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
-
High temperature heat pump using HFO and HCFO r...
- Auteurs : ARPAGAUS C., KUSTER R., PRINZING M., et al.
- Date : 24/08/2019
- Langues : Anglais
- Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
Voir la fiche
-
HFO-1336mzz(Z) and HCFO-1233zd(E) as alternativ...
- Auteurs : NAVARRO-ESBRÍ J., MOLÉS F., AMAT-ALBUIXECH M., et al.
- Date : 09/2018
- Langues : Anglais
- Source : 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
Voir la fiche
-
HFO-1336mzz(Z) and HCFO-1233zd(E) as alternativ...
- Auteurs : NAVARRO-ESBRÍ J., MOLÉS F., AMAT-ALBUIXECH M., et al.
- Date : 09/2018
- Langues : Anglais
- Source : 1st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
Voir la fiche
-
Industrial high temperature heat pump for steam...
- Auteurs : HAMACHER T.
- Date : 15/05/2023
- Langues : Anglais
- Source : 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
- Formats : PDF
Voir la fiche