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An investigation of condensate retention on pin-fin tubes

Authors
Journal
Applied Thermal Engineering
1359-4311
Publisher
Elsevier
Publication Date
Volume
63
Issue
2
Identifiers
DOI: 10.1016/j.applthermaleng.2013.11.038
Keywords
  • Condensate Flooding
  • Condensate Retention
  • Pin-Fin Tubes
  • Retention Angle

Abstract

Abstract Retention angle measurements on 15 rectangular pin-fin tubes are made under static conditions (without condensation) using water, ethylene glycol and R-113. Condensate retention angles found to be considerably larger than the equivalent integral-fin tubes (i.e. with the same fin height, root diameter and longitudinal pin thickness and spacing) in a range of 5%–60%. An expression for condensate retention angle on pin-fin tubes was proposed and found to agree with the measured retention angles to within 15%.

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