The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2015
Session ID : A211
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A211 Application of Microbubble Emission Boiling for Cooling Technology in Power Electronics
Tadashi FURUSHOKazuhisa YUKIKoichi SUZUKI
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
Subcooled pool boiling is investigated for binary mixtures of water and Ethylene-glycol of 30vol%,50vol% and 70vol% under the atmospheric condition. The heat transfer performance decreases with increasing of Ethylene-glycol concentration.According to the experimental data, the heat flux is indicated with liquid subcooling for the concentration of Ethylene-glycol. As increasing Ethylene-glycol concentration, CHF decreases and Microbubble Emission Boiling, MEB, is difficult to be generated. Stable MEB is observed at liquid subcooling of 50K for the mixture of water and Ethylene-glycol of 30vol %. The concentration of coolant is one of the difficult factors to be resolved in boiling heat transfer for the application to cooling technology.
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© 2015 The Japan Society of Mechanical Engineers
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