Acoustically enhanced boiling heat transfer

Author

Douglas, Z.W. ; Smith, M.K. ; Glezer, A.

Author_Institution

Georgia Inst. of Technol., Atlanta

fYear

2007

fDate

17-19 Sept. 2007

Firstpage

145

Lastpage

149

Abstract

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 flat-boiling 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.

Keywords

acoustic waves; boiling; bubbles; heat transfer; acoustic effects; calibrated-copper heater; critical heat flux; flat-boiling-heat-transfer surface; rigid-heated wall; vapor bubbles; Acoustic devices; Electronic packaging thermal management; Electronics cooling; Hardware; Heat engines; Heat transfer; Mechanical engineering; Surface acoustic waves; Thermal management; Underwater acoustics;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal Investigation of ICs and Systems, 2007. THERMINIC 2007. 13th International Workshop on

Conference_Location

Budapest

Print_ISBN

978-2-35500-002-7

Type

conf

DOI

10.1109/THERMINIC.2007.4451767

Filename

4451767