ShareHeat transfer of R134a in single-tube spray evaporation including lubricant effects and enhanced surface results.
Author(s) : MOEYKENS S. A., HUEBSCH W. W., PATE M. B.
Summary
Experimental tests were conducted in order to evaluate the average wall heat transfer coefficients for seven different commercially available tubes. A comparison of the results for all of the tubes showed that the enhanced condensation surfaces performed better than the enhanced boiling surfaces. Small concentrations of a polyol-ester lubricant cause a foaming effect that increases the heat transfer performance.
Details
- Original title: Heat transfer of R134a in single-tube spray evaporation including lubricant effects and enhanced surface results.
- Record ID : 1996-1523
- 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;
Lubricants - Keywords: R134a; Extended surface; Measurement; Mass transfer; Lubrication; Tube; Heat transfer; Spraying; Condensation; Boiling
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Enhanced in-tube heat transfer with refrigerants.
- Author(s) : CAVALLINI A., DEL COL D., DORETTI L., et al.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
View record
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Effect of lubricant on spray evaporation heat t...
- Author(s) : MOEYKENS S. A., PATE M. B.
- Date : 1996/02/16
- Languages : English
- Source: ASHRAE Transactions.
View record
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Dryout quality and post-dry out heat transfer c...
- Author(s) : MORI H., YOSHIDA S., OHISHI K., et al.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
View record
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Condensation of R134a on enhanced tubes.
- Author(s) : CHENG W. Y., WANG C. C.
- Date : 1994
- Languages : English
- Source: ASHRAE Transactions 1994.
View record
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Condensation and evaporation of new refrigerant...
- Author(s) : LETERRIBLE P., 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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