Acoustically Enhanced Boiling Heat Transfer

Details Acoustically Enhanced Boiling Heat Transfer Acoustically Enhanced Boiling Heat Transfer

2008-01-07

arxiv.org/abs/0801.0785v1

Dans 13th International Worshop on THERMal INvestigations of ICs and Systems - THERMINIC 2007, Budapest : Hongrie (2007)

Physics

General Physics

Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)

Scientific paper

An acoustic field is used to increase the critical heat flux (CHF) of a flat-boiling-heat-transfer surface. The increase is a result of the acoustic effects on the vapor bubbles. Experiments are performed to explore the effects of an acoustic field on vapor bubbles in the vicinity of a rigid-heated wall. Work includes the construction of a novel heater used to produce a single vapor bubble of a prescribed size and at a prescribed location on a flatboiling surface for better study of an individual vapor bubble's reaction to the acoustic field. Work also includes application of the results from the single-bubble heater to a calibrated-copper heater used for quantifying the improvements in CHF.

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