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Field synergy analysis of six starts spiral corrugated tube under high Reynolds number

Qian, Jin Yuan LU ; Liu, Bu Zhan; Chen, Fu Qiang; Gao, Xiao Fei and Jin, Zhi Jiang (2016) In Journal of Physics: Conference Series 745(3).
Abstract

Coaxial heat exchanger is widely used in air conditioning, refrigeration etc., due to its highly efficient heat transfer performance. Spiral corrugated tube plays an important role in coaxial heat exchanger. In this paper, the numerical model of a six starts spiral corrugated tube and a smooth tube with the same size are developed. The temperature field and the velocity field of their streamline and longitudinal vortex are investigated respectively. Then, their heat transfer and pressure drop performance inside the spiral corrugated tube under different high Reynolds number is investigated by compared their Nusselt number and friction coefficient. Meanwhile, their field synergy performances with their field synergy angles are presented.... (More)

Coaxial heat exchanger is widely used in air conditioning, refrigeration etc., due to its highly efficient heat transfer performance. Spiral corrugated tube plays an important role in coaxial heat exchanger. In this paper, the numerical model of a six starts spiral corrugated tube and a smooth tube with the same size are developed. The temperature field and the velocity field of their streamline and longitudinal vortex are investigated respectively. Then, their heat transfer and pressure drop performance inside the spiral corrugated tube under different high Reynolds number is investigated by compared their Nusselt number and friction coefficient. Meanwhile, their field synergy performances with their field synergy angles are presented. The result shows that the Nusselt number and friction coefficient of spiral corrugated tube are always larger than the smooth tube, and with the increasing of Reynolds number, the heat transfer performance of SCT becomes better than smooth tube, however, the friction coefficient ratio also increases synchronously. And in spiral corrugated tube, the field synergy angel is smaller than in the smooth tube. This work can be referred by some who are also dealing with spiral corrugated tube and its heat performance research.

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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Conference Series
volume
745
issue
3
publisher
IOP Publishing
external identifiers
  • scopus:84995444618
ISSN
1742-6588
DOI
10.1088/1742-6596/745/3/032070
language
English
LU publication?
no
id
299e874c-699d-44da-91e9-7061e92e7d09
date added to LUP
2017-01-21 14:45:19
date last changed
2017-01-30 13:44:06
@article{299e874c-699d-44da-91e9-7061e92e7d09,
  abstract     = {<p>Coaxial heat exchanger is widely used in air conditioning, refrigeration etc., due to its highly efficient heat transfer performance. Spiral corrugated tube plays an important role in coaxial heat exchanger. In this paper, the numerical model of a six starts spiral corrugated tube and a smooth tube with the same size are developed. The temperature field and the velocity field of their streamline and longitudinal vortex are investigated respectively. Then, their heat transfer and pressure drop performance inside the spiral corrugated tube under different high Reynolds number is investigated by compared their Nusselt number and friction coefficient. Meanwhile, their field synergy performances with their field synergy angles are presented. The result shows that the Nusselt number and friction coefficient of spiral corrugated tube are always larger than the smooth tube, and with the increasing of Reynolds number, the heat transfer performance of SCT becomes better than smooth tube, however, the friction coefficient ratio also increases synchronously. And in spiral corrugated tube, the field synergy angel is smaller than in the smooth tube. This work can be referred by some who are also dealing with spiral corrugated tube and its heat performance research.</p>},
  articleno    = {032070},
  author       = {Qian, Jin Yuan and Liu, Bu Zhan and Chen, Fu Qiang and Gao, Xiao Fei and Jin, Zhi Jiang},
  issn         = {1742-6588},
  language     = {eng},
  month        = {10},
  number       = {3},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics: Conference Series},
  title        = {Field synergy analysis of six starts spiral corrugated tube under high Reynolds number},
  url          = {http://dx.doi.org/10.1088/1742-6596/745/3/032070},
  volume       = {745},
  year         = {2016},
}