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Analysis of Fouling in Six-Start Spirally Corrugated Tubes

Qian, Jin yuan LU orcid ; Yang, Chen ; Wu, Zan LU ; Liu, Xue ling ; Gao, Xiao fei ; Jin, Zhi jiang and Sunden, Bengt LU (2020) In Heat Transfer Engineering 41. p.1885-1900
Abstract

Fouling on heat exchanger surfaces can weaken the heat-transfer capability, increase the energy consumption, and even cause the failure of the whole system. In coaxial heat exchangers, spirally corrugated tubes perform better than smooth ones concerning heat transfer and antifouling. In this article, a parametric study on the antifouling performance of a six-start spirally corrugated tube is carried out with a solid–liquid two-phase model. First, comparisons between a smooth tube and a specific sample six-start spirally corrugated tube on the solid particle volume fraction distributions are carried out. Then, the effects of solid particle diameter, the main geometric parameters, including pitch and the corrugation depth, are... (More)

Fouling on heat exchanger surfaces can weaken the heat-transfer capability, increase the energy consumption, and even cause the failure of the whole system. In coaxial heat exchangers, spirally corrugated tubes perform better than smooth ones concerning heat transfer and antifouling. In this article, a parametric study on the antifouling performance of a six-start spirally corrugated tube is carried out with a solid–liquid two-phase model. First, comparisons between a smooth tube and a specific sample six-start spirally corrugated tube on the solid particle volume fraction distributions are carried out. Then, the effects of solid particle diameter, the main geometric parameters, including pitch and the corrugation depth, are investigated. Analyzing the solid particle volume fraction with different geometries, solid particle diameters and Reynolds number, the roles played by the centrifugal force, drag force, and gravity of solid particles on fouling performance in six-start spirally corrugated tubes are obtained. In addition, the corrugation depth affects the volume fraction range more while the pitch affects more on the steady range of particle volume fraction. This work is of significance for further design of spirally corrugated tubes and analysis of fouling problems in heat exchangers.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Heat Transfer Engineering
volume
41
pages
16 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85074363370
ISSN
0145-7632
DOI
10.1080/01457632.2019.1675246
language
English
LU publication?
yes
id
f9d794b8-290d-45a4-9721-3ab7774543aa
date added to LUP
2022-04-01 11:44:07
date last changed
2023-11-21 04:05:01
@article{f9d794b8-290d-45a4-9721-3ab7774543aa,
  abstract     = {{<p>Fouling on heat exchanger surfaces can weaken the heat-transfer capability, increase the energy consumption, and even cause the failure of the whole system. In coaxial heat exchangers, spirally corrugated tubes perform better than smooth ones concerning heat transfer and antifouling. In this article, a parametric study on the antifouling performance of a six-start spirally corrugated tube is carried out with a solid–liquid two-phase model. First, comparisons between a smooth tube and a specific sample six-start spirally corrugated tube on the solid particle volume fraction distributions are carried out. Then, the effects of solid particle diameter, the main geometric parameters, including pitch and the corrugation depth, are investigated. Analyzing the solid particle volume fraction with different geometries, solid particle diameters and Reynolds number, the roles played by the centrifugal force, drag force, and gravity of solid particles on fouling performance in six-start spirally corrugated tubes are obtained. In addition, the corrugation depth affects the volume fraction range more while the pitch affects more on the steady range of particle volume fraction. This work is of significance for further design of spirally corrugated tubes and analysis of fouling problems in heat exchangers.</p>}},
  author       = {{Qian, Jin yuan and Yang, Chen and Wu, Zan and Liu, Xue ling and Gao, Xiao fei and Jin, Zhi jiang and Sunden, Bengt}},
  issn         = {{0145-7632}},
  language     = {{eng}},
  pages        = {{1885--1900}},
  publisher    = {{Taylor & Francis}},
  series       = {{Heat Transfer Engineering}},
  title        = {{Analysis of Fouling in Six-Start Spirally Corrugated Tubes}},
  url          = {{http://dx.doi.org/10.1080/01457632.2019.1675246}},
  doi          = {{10.1080/01457632.2019.1675246}},
  volume       = {{41}},
  year         = {{2020}},
}