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ISSN Druckformat: 1065-5131
ISSN Online: 1563-5074
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EHD Augmentation of Nucleate Boiling at a Gewa-T Surface
ABSTRAKT
In this paper, the electrohydrodynamic (EHD) augmentation of nucleate boiling at a passive enhanced surface, Wieland Gewa-T, is reported. The experiments were carried out using a single tube heat exchanger test rig by applying a 0 − 20 kV radial d.c. field to a dielectric liquid (Refrigerant R l14) on the Gewa-T surface. The results were compared with those for other surfaces obtained under the same experimental conditions. The mechanism of the EHD effects on nucleate boiling at a passive enhanced surface is discussed and analysed. The results indicate that the nucleate boiling for such a surface can be further enhanced at low superheat by utilizing the EHD effect. The elimination of boiling hysteresis and thermal controllability were also demonstrated in the experiments.
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Eckert E.R.G., Goldstein R.J., Ibele W.E., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Bar-Cohen A., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F., Kortshagen U., Heat transfer — a review of 1996 literature, International Journal of Heat and Mass Transfer, 43, 8, 2000. Crossref