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Effect of lateral fin profiles on stress performance of internally finned tubes in a high temperature heat exchanger

Zeng, Min LU ; Ma, Ting ; Sundén, Bengt LU ; Trabia, Mohamed B. and Wang, Qiuwang (2013) In Applied Thermal Engineering 50(1). p.886-895
Abstract
The thermal stress of the internally finned bayonet tube used for high temperature heat exchangers is numerically investigated by ANSYS software. Three kinds of lateral fin profiles, namely Z-shape, S-shape and V-shape are studied and compared. The significant temperature gradient and largest Von Mises stress are acquired. The largest stress is still generated in the joint of inner fin and outer tube due to the discontinuous change of the structure. The inner fin and inner tube are proposed to not be welded together to meet the reliability. The Z-shape has the best performance in both heat transfer and reliability, and is recommended for engineering application in high temperature heat exchangers. (C) 2012 Elsevier Ltd. All rights reserved.
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
High temperature heat exchangers, Bayonet tube, Inner fin, Lateral fin, Stress
in
Applied Thermal Engineering
volume
50
issue
1
pages
886 - 895
publisher
Elsevier
external identifiers
  • wos:000314191100100
  • scopus:84866551547
ISSN
1359-4311
DOI
10.1016/j.applthermaleng.2012.06.011
language
English
LU publication?
yes
id
585bd8cf-89fc-4485-9ffd-2825441aac23 (old id 3590741)
date added to LUP
2016-04-01 10:34:30
date last changed
2022-04-12 07:40:51
@article{585bd8cf-89fc-4485-9ffd-2825441aac23,
  abstract     = {{The thermal stress of the internally finned bayonet tube used for high temperature heat exchangers is numerically investigated by ANSYS software. Three kinds of lateral fin profiles, namely Z-shape, S-shape and V-shape are studied and compared. The significant temperature gradient and largest Von Mises stress are acquired. The largest stress is still generated in the joint of inner fin and outer tube due to the discontinuous change of the structure. The inner fin and inner tube are proposed to not be welded together to meet the reliability. The Z-shape has the best performance in both heat transfer and reliability, and is recommended for engineering application in high temperature heat exchangers. (C) 2012 Elsevier Ltd. All rights reserved.}},
  author       = {{Zeng, Min and Ma, Ting and Sundén, Bengt and Trabia, Mohamed B. and Wang, Qiuwang}},
  issn         = {{1359-4311}},
  keywords     = {{High temperature heat exchangers; Bayonet tube; Inner fin; Lateral fin; Stress}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{886--895}},
  publisher    = {{Elsevier}},
  series       = {{Applied Thermal Engineering}},
  title        = {{Effect of lateral fin profiles on stress performance of internally finned tubes in a high temperature heat exchanger}},
  url          = {{http://dx.doi.org/10.1016/j.applthermaleng.2012.06.011}},
  doi          = {{10.1016/j.applthermaleng.2012.06.011}},
  volume       = {{50}},
  year         = {{2013}},
}