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...

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Main Author:	Yong, Kok Wee
Format:	Thesis
Language:	English English English
Published:	2007
Subjects:	TP Chemical technology TP315-360 Fuel
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
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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

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

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