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ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

International Heat Transfer Conference 13
August, 13-18, 2006, Sydney, Australia

PRELIMINARY CHARACTERIZATION RESULTS ON A HIGH PERFORMANCE, COMPACT MICRO-GROOVED HEAT EXCHANGER SURFACE FOR PHASE CHANGE HEAT TRANSFER

Get access (open in a dialog) DOI: 10.1615/IHTC13.p18.380
11 pages

摘要

Increasing packaging density in electronic systems has led to a need for advanced cooling technology from conventional air cooling to liquid cooling. Two-phase liquid cooling with enhanced heat transfer surface shows superior heat transfer behavior compared to conventional air cooling. This research investigates high thermal performance microstructured surfaces to enhance the heat dissipation. These microstructures show potential to achieve very high heat transfer coefficients and dissipate high heat fluxes which are expected in thermal management devices of future electronics.
Experiments were performed to study pool boiling heat transfer of HFE 7100 on microgrooved surfaces. 10 × 10 mm samples of microgrooved surfaces with different fin densities, fin highs and fin thicknesses were tested. Testing was performed in a boiling chamber, where the same conditions were maintained for all the tests with a saturation temperature of 60 °C and a saturation pressure of 1 atm. A set of experiments were performed on microgrooved surfaces using force-feeding by forcing the working fluid into the boiling surface to enhance the heat transfer.