Modeling natural convection heat transfer from perforated plates
(2012) In Journal of Zhejiang University: Science A 13(5). p.353-360- Abstract
- Staggered pattern perforations are introduced to isolated isothermal plates, vertical parallel isothermal plates, and vertical rectangular isothermal fins under natural convection conditions. The performance of perforations was evaluated theoretically based on existing correlations by considering effects of ratios of open area, inclined angles, and other geometric parameters. It was found that staggered pattern perforations can increase the total heat transfer rate for isolated isothermal plates and vertical parallel plates, with low ratios of plate height to wall-to-wall spacing (H/s), by a factor of 1.07 to 1.21, while only by a factor of 1.03 to 1.07 for vertical rectangular isothermal fins, and the magnitude of enhancement is... (More)
- Staggered pattern perforations are introduced to isolated isothermal plates, vertical parallel isothermal plates, and vertical rectangular isothermal fins under natural convection conditions. The performance of perforations was evaluated theoretically based on existing correlations by considering effects of ratios of open area, inclined angles, and other geometric parameters. It was found that staggered pattern perforations can increase the total heat transfer rate for isolated isothermal plates and vertical parallel plates, with low ratios of plate height to wall-to-wall spacing (H/s), by a factor of 1.07 to 1.21, while only by a factor of 1.03 to 1.07 for vertical rectangular isothermal fins, and the magnitude of enhancement is proportional to the ratio of open area. However, staggered pattern perforations are detrimental to heat transfer enhancement of vertical parallel plates with large H/s ratios. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4285386
- author
- Wu, Zan LU ; Li, Wei ; Sun, Zhi-jian and Hong, Rong-hua
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Zhejiang University: Science A
- volume
- 13
- issue
- 5
- pages
- 353 - 360
- publisher
- Zhejiang University Press
- external identifiers
-
- scopus:84870347278
- ISSN
- 1673-565X
- DOI
- 10.1631/jzus.A1100222
- language
- English
- LU publication?
- no
- id
- cdc6f6b7-2771-4c4d-8179-c313bde46fca (old id 4285386)
- date added to LUP
- 2016-04-01 09:49:15
- date last changed
- 2022-02-17 03:33:01
@article{cdc6f6b7-2771-4c4d-8179-c313bde46fca,
abstract = {{Staggered pattern perforations are introduced to isolated isothermal plates, vertical parallel isothermal plates, and vertical rectangular isothermal fins under natural convection conditions. The performance of perforations was evaluated theoretically based on existing correlations by considering effects of ratios of open area, inclined angles, and other geometric parameters. It was found that staggered pattern perforations can increase the total heat transfer rate for isolated isothermal plates and vertical parallel plates, with low ratios of plate height to wall-to-wall spacing (H/s), by a factor of 1.07 to 1.21, while only by a factor of 1.03 to 1.07 for vertical rectangular isothermal fins, and the magnitude of enhancement is proportional to the ratio of open area. However, staggered pattern perforations are detrimental to heat transfer enhancement of vertical parallel plates with large H/s ratios.}},
author = {{Wu, Zan and Li, Wei and Sun, Zhi-jian and Hong, Rong-hua}},
issn = {{1673-565X}},
language = {{eng}},
number = {{5}},
pages = {{353--360}},
publisher = {{Zhejiang University Press}},
series = {{Journal of Zhejiang University: Science A}},
title = {{Modeling natural convection heat transfer from perforated plates}},
url = {{http://dx.doi.org/10.1631/jzus.A1100222}},
doi = {{10.1631/jzus.A1100222}},
volume = {{13}},
year = {{2012}},
}