Augmentation of Direct-Contact Heat Transfer to Drops with an Intermittent Electric Field

[+] Author and Article Information
N. Kaji, Y. H. Mori, Y. Tochitani, K. Komotori

Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-Ku, Yokohama 223, Japan

J. Heat Transfer 102(1), 32-37 (Feb 01, 1980) (6 pages) doi:10.1115/1.3244244 History: Received March 20, 1979; Online October 20, 2009


The characteristics of the augmentation technique previously proposed by the authors has been studied experimentally with water drops 3.9 to 5.9 mm in diameter rising in methylphenyl silicone oil. Each drop is subjected to an intermittent electric field applied periodically perpendicular to its trajectory, and the drop responds by periodic elongation in the direction of the field. The dependence of heat transfer coefficient on the strength, frequency and duty ratio of the field is presented and discussed.

Copyright © 1980 by ASME
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