An investigation of condensate retention on pin-fin tubes

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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%. © 2013 Elsevier Ltd. All rights reserved.




Ali, H. M., & Briggs, A. (2014). An investigation of condensate retention on pin-fin tubes. Applied Thermal Engineering, 63(2), 503–510.

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