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Cooling performance enhancement of LED (light emitting diode) packages with carbon nanogrease

Author

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  • Nam, Seong Rim
  • Jung, Chung Woo
  • Choi, Chang-Hwan
  • Kang, Yong Tae

Abstract

LED (light emitting diode) technology has been developed rapidly in recent years in the area of illumination applications. However, the rate of heat generation increases with the LED illumination intensity. The LED chip temperature is critical to determine the LED lifetime and efficiency. In this study, the thermal conductivities of grease mixed with four different nanoparticles – MWCNT (multi-walled carbon nanotube), silver, copper (II) oxide, and aluminum oxide (Al2O3) are measured by using a solid thermal conductivity measurement system. It is found that the measured thermal conductivities of the grease with MWCNT, silver, copper (II) oxide, and aluminum oxide enhance up to 82.8, 26, 58.8 and 40% at 1.0 wt%, respectively, compared with that of the pure grease. Results confirm that the MWCNT grease is the best candidate out of the four different nanoparticles-based greases for the LED package cooling performance.

Suggested Citation

  • Nam, Seong Rim & Jung, Chung Woo & Choi, Chang-Hwan & Kang, Yong Tae, 2013. "Cooling performance enhancement of LED (light emitting diode) packages with carbon nanogrease," Energy, Elsevier, vol. 60(C), pages 195-203.
    • Handle: RePEc:eee:energy:v:60:y:2013:i:c:p:195-203
    DOI: 10.1016/j.energy.2013.07.039
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    Cited by:

    1. Yazid, Muhammad Noor Afiq Witri Muhammad & Sidik, Nor Azwadi Che & Yahya, Wira Jazair, 2017. "Heat and mass transfer characteristics of carbon nanotube nanofluids: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 914-941.
    2. Kim, Chang Min & Kang, Yong Tae, 2014. "Cooling performance enhancement of LED (Light Emitting Diode) using nano-pastes for energy conversion application," Energy, Elsevier, vol. 76(C), pages 468-476.

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