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Numerical study of a round tube heat exchanger with louvered fins and delta winglets

Henk Huisseune UGent, Christophe T'Joen UGent, Peter De Jaeger UGent, Bernd Ameel UGent and Michel De Paepe UGent (2012) Journal of Physics Conference Series. 395.
abstract
Louvered fin and round tube heat exchangers are widely used in air conditioning devices and heat pumps. In this study the effect of punching delta winglet vortex generators in the louvered fin surface is studied numerically. The delta winglets are located in a common-flow-down orientation behind each tube of the staggered tube layout. It is shown that the generated vortices significantly reduce the size of the tube wakes. Three important heat transfer enhancement mechanisms can be distinguished: a better flow mixing, boundary layer thinning and a delay in flow separation from the tube surface. The compound heat exchanger has a better thermal hydraulic performance then when only louvers or only delta winglets are used. Comparison to other enhanced fin designs clearly shows its potential, especially for low Reynolds number applications.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
VORTEX GENERATORS, TRANSFER ENHANCEMENT, PERFORMANCE, FLOW
in
Journal of Physics Conference Series
editor
Daniel Petit and Christophe Le Niliot
volume
395
issue title
6TH EUROPEAN THERMAL SCIENCES CONFERENCE (EUROTHERM 2012)
article_number
012050
pages
8 pages
publisher
Editions Société Française de Thermique
conference name
6th European Thermal Sciences Conference (Eurotherm)
conference location
Poitiers, France
conference start
2012-09-04
conference end
2012-09-07
Web of Science type
Proceedings Paper
Web of Science id
000312264800050
ISSN
1742-6588
ISBN
9782905267849
DOI
10.1088/1742-6596/395/1/012050
language
English
UGent publication?
yes
classification
P1
copyright statement
I have retained and own the full copyright for this publication
id
2984038
handle
http://hdl.handle.net/1854/LU-2984038
date created
2012-09-10 10:58:18
date last changed
2013-06-21 16:04:59
@inproceedings{2984038,
  abstract     = {Louvered fin and round tube heat exchangers are widely used in air conditioning devices and heat pumps. In this study the effect of punching delta winglet vortex generators in the louvered fin surface is studied numerically. The delta winglets are located in a common-flow-down orientation behind each tube of the staggered tube layout. It is shown that the generated vortices significantly reduce the size of the tube wakes. Three important heat transfer enhancement mechanisms can be distinguished: a better flow mixing, boundary layer thinning and a delay in flow separation from the tube surface. The compound heat exchanger has a better thermal hydraulic performance then when only louvers or only delta winglets are used. Comparison to other enhanced fin designs clearly shows its potential, especially for low Reynolds number applications.},
  articleno    = {012050},
  author       = {Huisseune, Henk and T'Joen, Christophe and De Jaeger, Peter and Ameel, Bernd and De Paepe, Michel},
  booktitle    = {Journal of Physics Conference Series},
  editor       = {Petit, Daniel and Le Niliot, Christophe},
  isbn         = {9782905267849},
  issn         = {1742-6588},
  keyword      = {VORTEX GENERATORS,TRANSFER ENHANCEMENT,PERFORMANCE,FLOW},
  language     = {eng},
  location     = {Poitiers, France},
  pages        = {8},
  publisher    = {Editions Soci{\'e}t{\'e} Fran\c{c}aise de Thermique},
  title        = {Numerical study of a round tube heat exchanger with louvered fins and delta winglets},
  url          = {http://dx.doi.org/10.1088/1742-6596/395/1/012050},
  volume       = {395},
  year         = {2012},
}

Chicago
Huisseune, Henk, Christophe T’Joen, Peter De Jaeger, Bernd Ameel, and Michel De Paepe. 2012. “Numerical Study of a Round Tube Heat Exchanger with Louvered Fins and Delta Winglets.” In Journal of Physics Conference Series, ed. Daniel Petit and Christophe Le Niliot. Vol. 395. Editions Société Française de Thermique.
APA
Huisseune, H., T’Joen, C., De Jaeger, P., Ameel, B., & De Paepe, M. (2012). Numerical study of a round tube heat exchanger with louvered fins and delta winglets. In D. Petit & C. Le Niliot (Eds.), Journal of Physics Conference Series (Vol. 395). Presented at the 6th European Thermal Sciences Conference (Eurotherm), Editions Société Française de Thermique.
Vancouver
1.
Huisseune H, T’Joen C, De Jaeger P, Ameel B, De Paepe M. Numerical study of a round tube heat exchanger with louvered fins and delta winglets. In: Petit D, Le Niliot C, editors. Journal of Physics Conference Series. Editions Société Française de Thermique; 2012.
MLA
Huisseune, Henk, Christophe T’Joen, Peter De Jaeger, et al. “Numerical Study of a Round Tube Heat Exchanger with Louvered Fins and Delta Winglets.” Journal of Physics Conference Series. Ed. Daniel Petit & Christophe Le Niliot. Vol. 395. Editions Société Française de Thermique, 2012. Print.