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An Experimental Study of Liquid-Phase Heat Transfer in Multiport Minichannel Tubes

Haglund Stignor, Caroline LU ; Sundén, Bengt LU and Fahlen, Per (2009) In Heat Transfer Engineering 30(12). p.941-951
Abstract
Heat transfer has been evaluated experimentally on the tube side of three different minichannel tubes, so-called multiport extruded (MPE) tubes, with different cross-section geometry. The objective was to find out which correlations, models, and relations should be used when predicting the performance of complete heat exchangers consisting of such tubes. The geometry of the tube channels or ducts was rectangular with different aspect ratios and one of the tubes was equipped with surface enlargements inside the channels. Evaluations were performed with four different secondary refrigerant liquids: water, propylene glycol, Hycool 20, and Temper-20. The laminar flow regime was the main focus of the investigations. Despite the shape of the... (More)
Heat transfer has been evaluated experimentally on the tube side of three different minichannel tubes, so-called multiport extruded (MPE) tubes, with different cross-section geometry. The objective was to find out which correlations, models, and relations should be used when predicting the performance of complete heat exchangers consisting of such tubes. The geometry of the tube channels or ducts was rectangular with different aspect ratios and one of the tubes was equipped with surface enlargements inside the channels. Evaluations were performed with four different secondary refrigerant liquids: water, propylene glycol, Hycool 20, and Temper-20. The laminar flow regime was the main focus of the investigations. Despite the shape of the minichannels, best agreement was found with a model presented by Gnielinski for laminar flow, developing temperature profile, and fully developed velocity profile in circular tubes with the constant wall temperature boundary condition. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Heat Transfer Engineering
volume
30
issue
12
pages
941 - 951
publisher
Taylor & Francis
external identifiers
  • wos:000265857600004
  • scopus:67651247154
ISSN
1521-0537
DOI
10.1080/01457630902837426
language
English
LU publication?
yes
id
5308023e-5dc9-468f-af9a-f9e76e814e68 (old id 1426339)
date added to LUP
2009-06-29 15:43:02
date last changed
2017-08-27 04:06:05
@article{5308023e-5dc9-468f-af9a-f9e76e814e68,
  abstract     = {Heat transfer has been evaluated experimentally on the tube side of three different minichannel tubes, so-called multiport extruded (MPE) tubes, with different cross-section geometry. The objective was to find out which correlations, models, and relations should be used when predicting the performance of complete heat exchangers consisting of such tubes. The geometry of the tube channels or ducts was rectangular with different aspect ratios and one of the tubes was equipped with surface enlargements inside the channels. Evaluations were performed with four different secondary refrigerant liquids: water, propylene glycol, Hycool 20, and Temper-20. The laminar flow regime was the main focus of the investigations. Despite the shape of the minichannels, best agreement was found with a model presented by Gnielinski for laminar flow, developing temperature profile, and fully developed velocity profile in circular tubes with the constant wall temperature boundary condition.},
  author       = {Haglund Stignor, Caroline and Sundén, Bengt and Fahlen, Per},
  issn         = {1521-0537},
  language     = {eng},
  number       = {12},
  pages        = {941--951},
  publisher    = {Taylor & Francis},
  series       = {Heat Transfer Engineering},
  title        = {An Experimental Study of Liquid-Phase Heat Transfer in Multiport Minichannel Tubes},
  url          = {http://dx.doi.org/10.1080/01457630902837426},
  volume       = {30},
  year         = {2009},
}