ShareCompound enhancement of boiling heat transfer of R134a in a tube bundle.
Author(s) : CHEUNG K. H., OHADI M. M., DESSIATOUN S.
Summary
Heat transfer enhancement of R134a in a tube bundle for a pool boiling regime was studied experimentally utilizing the electrohydrodynamics (EHD) technique. A laboratory-scale tube bundle utilizing commercially available 40-fins-per inch (40 fpi) enhanced tubes was used in the experiments. R134a was chosen as the working fluid in all of the experiments. A nearly threefold enhancement in the boiling heat transfer coefficient of the bundle was obtained with maximum EHD power consumption of 1.2% of the bundle heat transfer rate. The effect of electric field polarity was studied and was found to have no pronounced effect on the enhancement mechanism for the application at hand.
Details
- Original title: Compound enhancement of boiling heat transfer of R134a in a tube bundle.
- Record ID : 1996-1518
- Languages: English
- Source: ASHRAE Transactions.
- Publication date: 1995/01
- 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 - Keywords: R134a; Hydrodynamics; Enhancement; Electricity; Measurement; Tube; Heat transfer; Bundle; Boiling
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- Date : 1994
- Languages : English
- Source: ASHRAE Transactions 1994.
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Condensation of R134a/R23 outside a bundle of s...
- Author(s) : SIGNE J. C., BONTEMPS A., MARVILLET C.
- Date : 1995/10/04
- Languages : English
- Source: Heat transfer in condensation. Proceedings of the Eurotherm Seminar 47.
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Experimental study of the effects of the spiral...
- Author(s) : OH S. Y., BERGLES A. E.
- Date : 1998
- Languages : English
- Source: ASHRAE Transactions. 1998 annual Meeting, Toronto, Ontario + CD-ROM.
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Flow boiling of refrigerant R-134a inside a mic...
- Author(s) : CAVALLINI A., DEL COL D., PADOVAN A., et al.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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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.
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