AUGMENTATION OF BOILING HEAT-TRANSFER BY UTILIZING THE EHD EFFECT - EHD BEHAVIOR OF BOILING BUBBLES AND HEAT-TRANSFER CHARACTERISTICS

In order to investigate the mechanism of augmentation of boiling heat transfer by utilizing electrohydrodynamic (EHD) phenomena, we performed basic experiments and analyses of bubble behaviour under applied electric fields and temperature gradients. These experiments clarified that the number of boiling bubbles increased greatly and they were forced to move around on the heat transfer surface violently, and that the area between the bubbles and heating surface effective for boiling heat transfer was enlarged.