Augmentation of heat transfer on the downward surface of a heated plate by ion injection.
The heat transfer characteristics of an electrohydrodynamically induced submerged impinging liquid flow are studied in a point-plane configuration. The working fluid, HFE-7100, is a weakly polar dielectric. Thermofluid-dynamic conditions as close as possible to the microgravity ones are obtained by heating a confined, downward-facing plate. Heat transfer coefficients on the plate can be stably enhanced by over 10 times, with negligible additional work, by means of the ion injection technique.
Grassi
Walter
W
LOTHAR (Low Gravity and Thermal Advanced Research Laboratory), Department of Energetics L. Poggi, University of Pisa, Via Diotisalvi 2-56126, Pisa, Italy. w.grassi@ing.unipi.it
Testi
Daniele
D
Della Vista
Davide
D
Torelli
Gabriele
G