Development of 30Watt high-power LEDs vapor chamber-based plate

Jung Chang Wang, Rong Tsu Wang, Tien Li Chang, Daw Shang Hwang

Research output: Contribution to journalArticle

80 Citations (Scopus)


This study utilizes experimental analysis with window program VCTM V1.0 to investigate the thermal performance of the vapor chamber and apply to 30. Watt high-power LEDs. The thermal experiment method is derived a novel empirical formula for the effective thermal conductivity of the vapor chamber and calculated its thermal performance. Results show that the maximum effective thermal conductivity is 870 W/m °C from the novel empirical formula, and comparing it with the experimental value, the calculating error is no more than ±5%. And the LED vapor chamber-based plate works out hot-spot problem of 30. Watt high-power LEDs, successfully.

Original languageEnglish
Pages (from-to)3990-4001
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Issue number19-20
Publication statusPublished - 2010 Sep 1
Externally publishedYes


  • Effective thermal conductivity
  • High-power LEDs
  • Hot-spot
  • Vapor chamber

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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