Thermal analysis of dual piezoelectric fans for cooling multi-LED packages

S. F. Sufian, Z. M. Fairuz, M. Zubair, M. Z. Abdullah, J. J. Mohamed

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

This paper reports on the dissipation of heat generated by a high power LED array using piezoelectric fans. Both numerical and experimental studies were carried out to evaluate the heat dissipation efficiency of high power LED package operating under multiple vibrating fans. Two vibrating fans were vertically oriented to the LED package and arranged according to configuration A (for edge to edge arrangement), and configuration B (for face to face arrangement). The junction temperature (Tj), thermal resistance (R) and average heat transfer coefficient h̄ were estimated. The results show that the single fan enhanced heat transfer performance approximately 1.8 times for the LED package. On the contrary, the dual fans enhanced heat transfer performance approximately by 2.3 times for configuration A and 2.4 for configuration B. A significant decrease in the thermal resistance was observed for all the configurations when fan separation distance δ was reduced. The best performance relative to natural convection was found to be at (δ = 0.1) which decreased the thermal resistance using single fan by about 38%, whereas the dual fan accounted for 49.5% in case of configuration A, and 50.6% for configuration B.

Original languageEnglish
Pages (from-to)1534-1543
Number of pages10
JournalMicroelectronics Reliability
Volume54
Issue number8
DOIs
Publication statusPublished - 2014

Fingerprint

fans
Thermoanalysis
Fans
Light emitting diodes
thermal analysis
light emitting diodes
Cooling
cooling
configurations
thermal resistance
Heat resistance
heat transfer
Heat transfer
heat transfer coefficients
Heat losses
Natural convection
free convection
Heat transfer coefficients
dissipation
heat

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Safety, Risk, Reliability and Quality
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

Cite this

Sufian, S. F. ; Fairuz, Z. M. ; Zubair, M. ; Abdullah, M. Z. ; Mohamed, J. J. / Thermal analysis of dual piezoelectric fans for cooling multi-LED packages. In: Microelectronics Reliability. 2014 ; Vol. 54, No. 8. pp. 1534-1543.
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Thermal analysis of dual piezoelectric fans for cooling multi-LED packages. / Sufian, S. F.; Fairuz, Z. M.; Zubair, M.; Abdullah, M. Z.; Mohamed, J. J.

In: Microelectronics Reliability, Vol. 54, No. 8, 2014, p. 1534-1543.

Research output: Contribution to journalArticle

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