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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- Date : 1996/02/16
- Languages : English
- Source: ASHRAE Transactions.
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- Date : 1997/01
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