Analysis of flow and heat transfer over louvered fins in compact geometries

The louvered fin is most widely used in automotive applications. Compared to other geometrical parameters ofthe fin, the louver angle has a stronger effect on heat transfer. This study is carried out by computational method to determine the louver inclination of a rectangular channel heat exch...

Full description

Saved in:
Bibliographic Details
Main Author: Yong, Kok Wee
Format: Thesis
Language:English
English
English
Published: 2007
Subjects:
Online Access:http://eprints.uthm.edu.my/7476/1/24p%20YONG%20KOK%20WEE.pdf
http://eprints.uthm.edu.my/7476/2/YONG%20KOK%20WEE%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/7476/3/YONG%20KOK%20WEE%20WATERMARK.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
id my-uthm-ep.7476
record_format uketd_dc
spelling my-uthm-ep.74762022-07-25T02:07:07Z Analysis of flow and heat transfer over louvered fins in compact geometries 2007-06 Yong, Kok Wee TP Chemical technology TP315-360 Fuel The louvered fin is most widely used in automotive applications. Compared to other geometrical parameters ofthe fin, the louver angle has a stronger effect on heat transfer. This study is carried out by computational method to determine the louver inclination of a rectangular channel heat exchanger that has the greatest influence on flow and heat transfer and invariant with other geometrical parameters. The meshed CAD model is validated with an established correlation in literature. In the earlier years of study, the mean flow angle was defined in two dimensional flows. ANSYS-CFD is capable of defining a mean flow angle was defined in three dimensional flows. The validation agrees weB, with about 5.39% of error. Various graphs are plotted to determine the optimized louver inclination. From the plotted graphs ofNusselt number and pumping power against the Reynolds Number, it is observed that the louver angle has a strong influence on the heat transfer rate. Then, a ratio of heat transfer rate to pumping power is used in the graphs as the non�dimensional number representation to determine the optimum angle. In addition to this study, a general correlation is developed to represent the behavior oflouver angle at different ranges of pumping power. With a practical range of Reynolds numbers and louver angles, the optimum angle is found to be 20 degrees. This numerical result has a high confidence level where a good agreement between the meshed models with the established finding is obtained. The study has succeeded in obtaining the result that was set out as the objective. 2007-06 Thesis http://eprints.uthm.edu.my/7476/ http://eprints.uthm.edu.my/7476/1/24p%20YONG%20KOK%20WEE.pdf text en public http://eprints.uthm.edu.my/7476/2/YONG%20KOK%20WEE%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/7476/3/YONG%20KOK%20WEE%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
English
English
topic TP Chemical technology
TP315-360 Fuel
spellingShingle TP Chemical technology
TP315-360 Fuel
Yong, Kok Wee
Analysis of flow and heat transfer over louvered fins in compact geometries
description The louvered fin is most widely used in automotive applications. Compared to other geometrical parameters ofthe fin, the louver angle has a stronger effect on heat transfer. This study is carried out by computational method to determine the louver inclination of a rectangular channel heat exchanger that has the greatest influence on flow and heat transfer and invariant with other geometrical parameters. The meshed CAD model is validated with an established correlation in literature. In the earlier years of study, the mean flow angle was defined in two dimensional flows. ANSYS-CFD is capable of defining a mean flow angle was defined in three dimensional flows. The validation agrees weB, with about 5.39% of error. Various graphs are plotted to determine the optimized louver inclination. From the plotted graphs ofNusselt number and pumping power against the Reynolds Number, it is observed that the louver angle has a strong influence on the heat transfer rate. Then, a ratio of heat transfer rate to pumping power is used in the graphs as the non�dimensional number representation to determine the optimum angle. In addition to this study, a general correlation is developed to represent the behavior oflouver angle at different ranges of pumping power. With a practical range of Reynolds numbers and louver angles, the optimum angle is found to be 20 degrees. This numerical result has a high confidence level where a good agreement between the meshed models with the established finding is obtained. The study has succeeded in obtaining the result that was set out as the objective.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Yong, Kok Wee
author_facet Yong, Kok Wee
author_sort Yong, Kok Wee
title Analysis of flow and heat transfer over louvered fins in compact geometries
title_short Analysis of flow and heat transfer over louvered fins in compact geometries
title_full Analysis of flow and heat transfer over louvered fins in compact geometries
title_fullStr Analysis of flow and heat transfer over louvered fins in compact geometries
title_full_unstemmed Analysis of flow and heat transfer over louvered fins in compact geometries
title_sort analysis of flow and heat transfer over louvered fins in compact geometries
granting_institution Universiti Tun Hussein Onn Malaysia
granting_department Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate 2007
url http://eprints.uthm.edu.my/7476/1/24p%20YONG%20KOK%20WEE.pdf
http://eprints.uthm.edu.my/7476/2/YONG%20KOK%20WEE%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/7476/3/YONG%20KOK%20WEE%20WATERMARK.pdf
_version_ 1747831159240261632