Boiling of enhanced surfaces at high heat fluxes in a small boiler

  • Liang Han Chien*
  • , C. W. Chen
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

High operating heat fluxes and small boiling space are the two major challenges to apply boiling heat transfer in electronics cooling. This experimental study seeks to find a good boiling performance surface that is suitable for cooling a CPU dissipating up to 88 W through a 14 mm × 14 mm surface area in a 15 mm × 54mm × 54mm vessel. Three structured boiling surfaces and three porous surfaces were tested in water at 60°C pool temperature. The experimental data showed that the best cross-grooved surface and the best porous surface have similar boiling performance curves. The evaporation resistances of these two surfaces vary from 0.12 to 0.26 K/W. The minimum evaporation resistance of the best cross-grooved surface was 0.125 K/W at 86.5 W. Because the evaporator area is much smaller than the condenser or the heat sink area, the thermal resistance is dominated by the evaporator. The condensation resistance of the 54mm × 54mm condensing area varies from 0.01 to 0.022 K/W, which is much smaller than the evaporation resistance of every boiling surface in the present test.

Original languageEnglish
Title of host publicationProceedings of the ASME/Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
Subtitle of host publicationAdvances in Electronic Packaging 2005
Pages655-662
Number of pages8
StatePublished - 2005
Externally publishedYes
EventASME/Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems: Advances in Electronic Packaging 2005 - San Francisco, CA, United States
Duration: 17 07 200522 07 2005

Publication series

NameProceedings of the ASME/Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems: Advances in Electronic Packaging 2005
VolumePART A

Conference

ConferenceASME/Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems: Advances in Electronic Packaging 2005
Country/TerritoryUnited States
CitySan Francisco, CA
Period17/07/0522/07/05

Keywords

  • Boiling
  • Condensation
  • Cooling
  • Evaporation
  • Porous
  • Thermal Resistance

Fingerprint

Dive into the research topics of 'Boiling of enhanced surfaces at high heat fluxes in a small boiler'. Together they form a unique fingerprint.

Cite this