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Experimental study on convective heat transfer coefficient around a vertical hexagonal rod bundle

Makhmalbaf, M. H. M ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1007/s00231-011-0951-0
  3. Publisher: 2012
  4. Abstract:
  5. Research on convective heat transfer coefficient around a rod bundle has many diverse applications in industry. So far, many studies have been conducted in correlations related to internal and turbulent fully-developed flow. Comparison shows that Dittus-Boelter, Sieder-Tate and Petukhov have so far been the most practical correlations in fully-developed turbulent fluid flow heat transfer. The present study conducts an experimental examination of the validity of these frequently-applied correlations and introduces a manufactured test facility as well. Due to its generalizibility, the unique geometry of this test facility (hexagonal arranged, 7 vertical rods in a hexagonal tube) can fulfil extensive applications. The paper also studies the major deviation sources in data measurements, calibrations and turbulence of fluid flow in this. Finally, regarding to sufficient number of experiments in a vast fluid mean velocity range (3,800
  6. Keywords:
  7. Convective heat transfer Coefficient ; Data measurements ; Diverse applications ; Experimental examination ; Experimental studies ; Hexagonal tubes ; Mean velocities ; Rod bundles ; Turbulent fluid flow ; Vertical rods ; Test facilities ; Heat transfer coefficients
  8. Source: Heat and Mass Transfer/Waerme- und Stoffuebertragung ; Volume 48, Issue 6 , 2012 , Pages 1023-1029 ; 09477411 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs00231-011-0951-0