ShareStudy of evaporative heat transfer of the zeotropic mixture HFC-23/HFC-134a inside a smooth horizontal tube.
Etude du transfert de chaleur lors de l'évaporation du mélange zéotrope HFC-23/HFC-134a à l'intérieur d'un tube lisse horizontal.
Author(s) : BERRADA N., MARVILLET C.
Summary
A straight coaxial test section was used. The refrigerant evaporates inside the inner tube and hot water flows inside the surrounding circular ring area. A significant reduction in the evaporative exchange coefficient was seen. A model was presented and validated, taking into account this decrease in the nucleate boiling region as well as in the convective evaporation region. Pressure drops were also evaluated.
Details
- Original title: Etude du transfert de chaleur lors de l'évaporation du mélange zéotrope HFC-23/HFC-134a à l'intérieur d'un tube lisse horizontal.
- Record ID : 2000-0126
- Languages: French
- Source: Heat transfer in condensation and evaporation: application to industrial and environmental processes. Preprints of the EUROTHERM Seminar 62.
- Publication date: 1998/11/17
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
HFCs;
Heat transfer;
Mass transfer;
Blends - Keywords: R23; R134a; Horizontal tube; Heat transfer coefficient; Measurement; Mass transfer; Heat transfer; Bare pipe; Modelling; Mixture; Evaporation
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Etude des transferts de chaleur lors de l'évapo...
- Author(s) : BERRADA N.
- Date : 1996/06/18
- Languages : French
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Filmwise condensation of R134a and R23/R134a mi...
- Author(s) : BELGHAZI M., SIGNE J. C., BONTEMPS A., MARVILLET C.
- Date : 1998/11/17
- Languages : English
- Source: Heat transfer in condensation and evaporation: application to industrial and environmental processes. Preprints of the EUROTHERM Seminar 62.
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Etude expérimentale de la condensation du mélan...
- Author(s) : BERRADA N., MARVILLET C., BONTEMPS A., DAOUDI S.
- Date : 1995/10/04
- Languages : French
- Source: Heat transfer in condensation. Proceedings of the Eurotherm Seminar 47.
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Etude de la condensation d'un mélange zéotropiq...
- Author(s) : SIGNE J. C., BONTEMPS A., MARVILLET C.
- Date : 1995/08/20
- Languages : French
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
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Condensation of "Freon" binary mixture outside ...
- Author(s) : SIGNE J. C., BONTEMPS A., MARVILLET C.
- Date : 1996/05/29
- Languages : English
- Source: Proceedings of the 2nd European Thermal-Sciences (EUROTHERM) and 14th UIT National Heat Transfer Conference 1996.
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