This paper describes results from an experimental study of the effect of an electric field on nucleate boiling and the critical heat flux (CHF) in pool boiling at atmospheric pressure. A dielectric liquid of HFE-7100 (3 M Co.) was used as working fluid. A heating surface was polished with the surface roughness (Ra) of 0.05 μm. A microsized electrode, in which the slits were provided, was designed in order to generate non uniform high electric fields and to produce electrohydrodynamic (EHD) effects with the application of high voltages. The obtained results confirmed the enhancement of CHF since the EHD effects increased the CHF to 47 W/cm2 at the voltage of −1500 V, which was three times as much as CHF for the free convection boiling. From the observations of the behavior of bubbles over the electrode and of the boiling surface condition, the instability between the liquid and the vapor increased the heat flux, the heat transfer coefficient (HTC), and the CHF. The usual traveling wave on the bubble interface induced by the Kelvin-Helmholtz instability was modified by adding the EHD effects. The ratio of critical heat flux increase with and without the electric field was sufficiently predicted by the frequency ratio of liquid–vapor surface at the gap between the boiling surface and the electrode.
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e-mail: yuta.higuchi@kitashiba.toshiba.co.jp
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September 2013
This article was originally published in
Journal of Heat Transfer
Research-Article
Development of Boiling Type Cooling System Using Electrohydrodynamics Effect
Ichiro Kano,
Ichiro Kano
Graduate School of Science and Engineering
e-mail: kano@yz.yamagata-u.ac.jp
Yamagata University
,4-3-16 Jonan, Yonezawa
,Yamagata 992-8510
, Japan
e-mail: kano@yz.yamagata-u.ac.jp
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Yuta Higuchi,
e-mail: yuta.higuchi@kitashiba.toshiba.co.jp
Yuta Higuchi
Kitashiba Electric Co., Ltd
,9 Tennohara, Fukushima
,Fukushima 960-1292
, Japan
e-mail: yuta.higuchi@kitashiba.toshiba.co.jp
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Tadashi Chika
Tadashi Chika
Graduate School of Science and Engineering,
e-mail: tht53130@st.yamagata-u.ac.jp
Yamagata University
,4-3-16 Jonan, Yonezawa
,Yamagata 992-8510
, Japan
e-mail: tht53130@st.yamagata-u.ac.jp
Search for other works by this author on:
Ichiro Kano
Graduate School of Science and Engineering
e-mail: kano@yz.yamagata-u.ac.jp
Yamagata University
,4-3-16 Jonan, Yonezawa
,Yamagata 992-8510
, Japan
e-mail: kano@yz.yamagata-u.ac.jp
Yuta Higuchi
Kitashiba Electric Co., Ltd
,9 Tennohara, Fukushima
,Fukushima 960-1292
, Japan
e-mail: yuta.higuchi@kitashiba.toshiba.co.jp
Tadashi Chika
Graduate School of Science and Engineering,
e-mail: tht53130@st.yamagata-u.ac.jp
Yamagata University
,4-3-16 Jonan, Yonezawa
,Yamagata 992-8510
, Japan
e-mail: tht53130@st.yamagata-u.ac.jp
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received May 21, 2012; final manuscript received February 5, 2013; published online July 26, 2013. Guest Editors: G. P. “Bud” Peterson and Zhuomin Zhang.
J. Heat Transfer. Sep 2013, 135(9): 091301 (8 pages)
Published Online: July 26, 2013
Article history
Received:
May 21, 2012
Revision Received:
February 5, 2013
Citation
Kano, I., Higuchi, Y., and Chika, T. (July 26, 2013). "Development of Boiling Type Cooling System Using Electrohydrodynamics Effect." ASME. J. Heat Transfer. September 2013; 135(9): 091301. https://doi.org/10.1115/1.4024390
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