ShareInfluence of ultrasound on pool boiling heat transfer to mixtures of the refrigerants R23 and R134a.
Author(s) : BONEKAMP S., BIER K.
Summary
The enhancement of the heat transfer coefficient, which can be achieved by ultrasound, is much more pronounced for mixtures than for pure substances. It is, however, limited to rather small heat flux densities (lower than 10 kilowatts/m2). Especially remarkable is the fact, that the maximum influence of ultrasound on the heat transfer coefficient of the mixtures occurs at medium saturation pressures of about 0.2; the effect is markedly less for higher and for lower saturation pressures.
Details
- Original title: Influence of ultrasound on pool boiling heat transfer to mixtures of the refrigerants R23 and R134a.
- Record ID : 1998-0176
- Languages: English
- Source: Proceedings of EUROTHERM Seminar n. 48. Pool boiling 2.
- Publication date: 1996/09/18
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
HFCs;
Mass transfer;
Blends - Keywords: R23; R134a; Heat transfer coefficient; Mass transfer; Ultrasound; Heat transfer; Optimization; Mixture; Refrigerant; Boiling
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Etude du transfert de chaleur lors de l'évapora...
- Author(s) : BERRADA N., MARVILLET C.
- Date : 1998/11/17
- Languages : French
- Source: Heat transfer in condensation and evaporation: application to industrial and environmental processes. Preprints of the EUROTHERM Seminar 62.
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Pool boiling heat transfer of binary and ternar...
- Author(s) : SPINDLER K., VOSS J., HAHNE E.
- Date : 1996/09/18
- Languages : English
- Source: Proceedings of EUROTHERM Seminar n. 48. Pool boiling 2.
View record
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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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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.
View record
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Effect of fin geometry on condensation of downw...
- Author(s) : HONDA H., TAKAMATSU H., TAKATA N.
- 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.
View record