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An Efficient Approach for Performance Evaluation and Parameter Design of Heat Transfer Enhancing Structure

[+] Author Affiliations
Wen-Jing Zhou, Ju-Fang Fan, Ya-Ling He, Wen-Quan Tao

Xi’an Jiaotong University, Xi’an, Shaanxi, China

Zhi-Geng Wu

Warwick University, Coventry, UK

Paper No. IHTC14-22100, pp. 199-206; 8 pages
doi:10.1115/IHTC14-22100
From:
  • 2010 14th International Heat Transfer Conference
  • 2010 14th International Heat Transfer Conference, Volume 4
  • Washington, DC, USA, August 8–13, 2010
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4939-2 | eISBN: 978-0-7918-3879-2
  • Copyright © 2010 by ASME

abstract

The effects of main geometrical parameters of the longitudinal vortex generator (LVG) called “common flow up” on heat transfer enhancement and pressure loss are numerically investigated. Taguchi method is used to guide the numerical simulations. Based on the results of the Taguchi method, a new fin with the combination of different vortex generators is proposed to substitute the original wavy fin-and-tube surface. The results show that the new fin with LVGs can save 9.08% of pumping power while reaching the same amount of heat transfer rate as the wavy fin at inlet velocity of 2m/s, and it can also save 33% of heat transfer area.

Copyright © 2010 by ASME

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