Title :
Acoustically enhanced boiling heat transfer
Author :
Douglas, Z.W. ; Smith, M.K. ; Glezer, A.
Author_Institution :
Georgia Inst. of Technol., Atlanta
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;
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
DOI :
10.1109/THERMINIC.2007.4451767
