Effect of piezoelectric fan mode shape on the heat transfer characteristics

Z. M. Fairuz, S. F. Sufian, M. Z. Abdullah, M. Zubair, M. S. Abdul Aziz

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)140-151
Number of pages12
JournalInternational Communications in Heat and Mass Transfer
Volume52
DOIs
Publication statusPublished - 03-2014

Fingerprint

modal response
fans
Fans
heat transfer
Heat transfer
Natural convection
Flow velocity
Vibrations (mechanical)
Numerical models
Vortex flow
Electric power utilization
Cooling
Air
air flow
blades
free convection
low noise
vibration mode
flow velocity
vortices

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Fairuz, Z. M. ; Sufian, S. F. ; Abdullah, M. Z. ; Zubair, M. ; Abdul Aziz, M. S. / Effect of piezoelectric fan mode shape on the heat transfer characteristics. In: International Communications in Heat and Mass Transfer. 2014 ; Vol. 52. pp. 140-151.
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Effect of piezoelectric fan mode shape on the heat transfer characteristics. / Fairuz, Z. M.; Sufian, S. F.; Abdullah, M. Z.; Zubair, M.; Abdul Aziz, M. S.

In: International Communications in Heat and Mass Transfer, Vol. 52, 03.2014, p. 140-151.

Research output: Contribution to journalArticle

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