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Effects of Tube Diameter, Length and Tube Numbers on Condensation of Steam in Vertical Tube Condenser

[+] Author Affiliations
Shripad T. Revankar, Gavin Henderson

Purdue University, West Lafayette, IN

Paper No. IMECE2009-10632, pp. 1563-1572; 10 pages
  • ASME 2009 International Mechanical Engineering Congress and Exposition
  • Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C
  • Lake Buena Vista, Florida, USA, November 13–19, 2009
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4382-6 | eISBN: 978-0-7918-3863-1
  • Copyright © 2009 by ASME


A heat and mass analogy study was performed for the steam condensation in a vertical tube where steam is completely condensed. In the analysis a single tube, tube bundle with four tubes and two different diameter tubes were considered. The two condensing tubes of same height (0.9m) but different inside diameters, 26.6mm and 52.5mm, were used whereas the tube bundle was made of four tubes of height 1.8 m and 52.5 mm diameter. The results showed that the operating pressure is uniquely determined by inlet steam flow rate for the complete condensation. The condensation heat transfer rate increases and the condensation heat transfer coefficient decreases with the system pressure. The condensation heat transfer coefficients (HTC) were obtained as function various parameters such as different primary pressure (150–450 kPa) and inlet steam flow rate, single tube and tube bundle and tube diameters. Comparison with experimental condensation rates for single tube of 26.6 mm and 52.5 mm and four tube bundle of tube diameter 52.5 mm were made and the agreement was good. The effects of these parameters to condensation performance were evaluated.

Copyright © 2009 by ASME



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