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Pecularities of heat transfer from in-line tube bundles to upward aqueous foam flow

Gylys, J.; Sinkunas, S.; Sundén, Bengt LU ; Gabrielaitiene, I. and Zdankus, T. (2008) In Advanced Computational Methods and Experiments in Heat Transfer X
Abstract
Four in-line tube bundles with different geometry were investigated for establishing their performance in terms of heat transfer enhancement.

Two-phase aqueous foam was used as a coolant.

Such coolant was considered, because our previous research showed that large heat transfer intensity may be reached even at small mass flow rate of the foam.

Spacing among the centres of the tubes across the first in-line tube bundle was 0.

03 m and spacing along the bundle was 0.

03 m.

In the second case spacing among the centres of the tubes across the bundle was 0.

03 m; spacing along the bundle was 0.

06 m.

In the third case spacing was accordingly 0.

06 and... (More)
Four in-line tube bundles with different geometry were investigated for establishing their performance in terms of heat transfer enhancement.

Two-phase aqueous foam was used as a coolant.

Such coolant was considered, because our previous research showed that large heat transfer intensity may be reached even at small mass flow rate of the foam.

Spacing among the centres of the tubes across the first in-line tube bundle was 0.

03 m and spacing along the bundle was 0.

03 m.

In the second case spacing among the centres of the tubes across the bundle was 0.

03 m; spacing along the bundle was 0.

06 m.

In the third case spacing was accordingly 0.

06 and 0.

03 and in the last case spacing was accordingly 0.

06 m and 0.

06 m.

During an experimental investigation it was determined a dependence of heat transfer intensity on flow parameters.

The investigation of heat transfer from the bundle to upward vertical foam flow was provided for three different values of foam volumetric void fractions β=0.

996÷0.

998.

The velocity of the foam flow was changed from 0.

14 to 0.

30 m/s.

The heat transfer coefficient varied from 200 to 2000 W/(m2K) for the above mentioned foam flow parameters. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Advanced Computational Methods and Experiments in Heat Transfer X
editor
Sunden, Bengt and Brebbia, C.
publisher
WIT Press
external identifiers
  • Scopus:58849166838
ISBN
978-1-84564-122-1
DOI
10.2495/HT080111
language
English
LU publication?
yes
id
7afa7c5c-4ca2-4599-a58e-b9e6c9bff970 (old id 1272999)
date added to LUP
2008-12-08 11:41:12
date last changed
2016-10-13 04:40:25
@misc{7afa7c5c-4ca2-4599-a58e-b9e6c9bff970,
  abstract     = {Four in-line tube bundles with different geometry were investigated for establishing their performance in terms of heat transfer enhancement.<br/><br>
Two-phase aqueous foam was used as a coolant.<br/><br>
Such coolant was considered, because our previous research showed that large heat transfer intensity may be reached even at small mass flow rate of the foam.<br/><br>
Spacing among the centres of the tubes across the first in-line tube bundle was 0.<br/><br>
03 m and spacing along the bundle was 0.<br/><br>
03 m.<br/><br>
In the second case spacing among the centres of the tubes across the bundle was 0.<br/><br>
03 m; spacing along the bundle was 0.<br/><br>
06 m.<br/><br>
In the third case spacing was accordingly 0.<br/><br>
06 and 0.<br/><br>
03 and in the last case spacing was accordingly 0.<br/><br>
06 m and 0.<br/><br>
06 m.<br/><br>
During an experimental investigation it was determined a dependence of heat transfer intensity on flow parameters.<br/><br>
The investigation of heat transfer from the bundle to upward vertical foam flow was provided for three different values of foam volumetric void fractions β=0.<br/><br>
996÷0.<br/><br>
998.<br/><br>
The velocity of the foam flow was changed from 0.<br/><br>
14 to 0.<br/><br>
30 m/s.<br/><br>
The heat transfer coefficient varied from 200 to 2000 W/(m2K) for the above mentioned foam flow parameters.},
  author       = {Gylys, J. and Sinkunas, S. and Sundén, Bengt and Gabrielaitiene, I. and Zdankus, T.},
  editor       = {Sunden, Bengt and Brebbia, C.},
  isbn         = {978-1-84564-122-1},
  language     = {eng},
  publisher    = {ARRAY(0x81fd5d0)},
  series       = {Advanced Computational Methods and Experiments in Heat Transfer X},
  title        = {Pecularities of heat transfer from in-line tube bundles to upward aqueous foam flow},
  url          = {http://dx.doi.org/10.2495/HT080111},
  year         = {2008},
}