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Effect of piezoelectric fan mode shape on the heat transfer characteristics

Piezoelectric fans with their low noise and power consumption, are an effective means of enhancing heat transfer and is a viable alternative to the natural convection process. Several studies have been extensively carried out at the fundamental resonance mode. In this work, three-dimensional numeric...

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Main Authors: Fairuz, Z. M., Sufian, S. F., Abdullah, M. Z., Zubair, Mohammad, Abdul Aziz, M. S.
Format: Article
Language:English
Published: Elsevier 2014
Online Access:http://psasir.upm.edu.my/id/eprint/37290/1/HEAT.pdf
http://psasir.upm.edu.my/id/eprint/37290/
https://www.sciencedirect.com/science/article/abs/pii/S0735193313002339#!
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spelling my.upm.eprints.372902021-02-28T17:52:23Z http://psasir.upm.edu.my/id/eprint/37290/ Effect of piezoelectric fan mode shape on the heat transfer characteristics Fairuz, Z. M. Sufian, S. F. Abdullah, M. Z. Zubair, Mohammad Abdul Aziz, M. S. Piezoelectric fans with their low noise and power consumption, are an effective means of enhancing heat transfer and is a viable alternative to the natural convection process. Several studies have been extensively carried out at the fundamental resonance mode. In this work, three-dimensional numerical studies on the effect of first, second and third mode shapes driven at frequency and the tip amplitude of the first mode are accomplished to investigate their effects on the heat transfer characteristics. The experimental and numerical model of the first mode shows a reasonably good agreement between them. The results showed that the increase in the mode number decreased the induced air flow velocity on the top of the heated surface, thus impeding the cooling capabilities at higher mode number. The vibrating blade of the first mode produced a pair of asymmetric vortex of opposite circulation around front and the back the piezofan tip, which disappear with the increase of mode number. It is thus established from this work that higher mode of vibrations is ineffective and therefore the fundamental resonance mode is suggested for all practical piezofan applications. Elsevier 2014 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/37290/1/HEAT.pdf Fairuz, Z. M. and Sufian, S. F. and Abdullah, M. Z. and Zubair, Mohammad and Abdul Aziz, M. S. (2014) Effect of piezoelectric fan mode shape on the heat transfer characteristics. International Communications in Heat and Mass Transfer, 52. pp. 140-151. ISSN 0735-1933 https://www.sciencedirect.com/science/article/abs/pii/S0735193313002339#! 10.1016/j.icheatmasstransfer.2013.11.013
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Piezoelectric fans with their low noise and power consumption, are an effective means of enhancing heat transfer and is a viable alternative to the natural convection process. Several studies have been extensively carried out at the fundamental resonance mode. In this work, three-dimensional numerical studies on the effect of first, second and third mode shapes driven at frequency and the tip amplitude of the first mode are accomplished to investigate their effects on the heat transfer characteristics. The experimental and numerical model of the first mode shows a reasonably good agreement between them. The results showed that the increase in the mode number decreased the induced air flow velocity on the top of the heated surface, thus impeding the cooling capabilities at higher mode number. The vibrating blade of the first mode produced a pair of asymmetric vortex of opposite circulation around front and the back the piezofan tip, which disappear with the increase of mode number. It is thus established from this work that higher mode of vibrations is ineffective and therefore the fundamental resonance mode is suggested for all practical piezofan applications.
format Article
author Fairuz, Z. M.
Sufian, S. F.
Abdullah, M. Z.
Zubair, Mohammad
Abdul Aziz, M. S.
spellingShingle Fairuz, Z. M.
Sufian, S. F.
Abdullah, M. Z.
Zubair, Mohammad
Abdul Aziz, M. S.
Effect of piezoelectric fan mode shape on the heat transfer characteristics
author_facet Fairuz, Z. M.
Sufian, S. F.
Abdullah, M. Z.
Zubair, Mohammad
Abdul Aziz, M. S.
author_sort Fairuz, Z. M.
title Effect of piezoelectric fan mode shape on the heat transfer characteristics
title_short Effect of piezoelectric fan mode shape on the heat transfer characteristics
title_full Effect of piezoelectric fan mode shape on the heat transfer characteristics
title_fullStr Effect of piezoelectric fan mode shape on the heat transfer characteristics
title_full_unstemmed Effect of piezoelectric fan mode shape on the heat transfer characteristics
title_sort effect of piezoelectric fan mode shape on the heat transfer characteristics
publisher Elsevier
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/37290/1/HEAT.pdf
http://psasir.upm.edu.my/id/eprint/37290/
https://www.sciencedirect.com/science/article/abs/pii/S0735193313002339#!
_version_ 1693727616928841728
score 13.211869

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