Effect of frequency on heat transfer enhancement in temperature induced electrohydrodynamic pumping

Author

Margo, B. ; Seyed-Yagoobi, Jamal ; Bryan, J.

Author_Institution

Dept. of Mech. Eng., Texas A&M Univ., College Station, TX, USA

fYear

1993

fDate

19-23 Jul 1993

Firstpage

539

Lastpage

544

Abstract

An induction electrohydrodynamic (EHD) pump in an axisymmetric configuration was designed and built to examine the heat transfer enhancment which accompanies fluid pumping. The apparatus was operated at several tilt angles between 0° (horizontal) and 90° while the augmentation of heat transfer was measured and compared to typical forced pumping and natural circulation. The increase in the overall conductance value for EHD pumping compared to typical forced pumping and natural circulation was as high as 105% and 122%, respectively. This corresponds to a much higher increase in the inside convection coefficient, which is the only resistance to heat transfer caused by induction pumping

Keywords

electrohydrodynamics; EHD pump; axisymmetric configuration; conductance; fluid pumping; forced pumping; frequency; heat transfer enhancement; induction pumping; inside convection coefficient; natural circulation; temperature induced electrohydrodynamic pumping; tilt angles; Conductivity; Cooling; Electrodes; Electrohydrodynamics; Frequency; Heat pumps; Heat transfer; Space heating; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids,1993., ICDL '93., IEEE 11th International Conference on

Conference_Location

Baden-Dattwil

Print_ISBN

0-7803-0791-7

Type

conf

DOI

10.1109/ICDL.1993.594001

Filename

594001