Abstract
The influence of electric field, interelectrode spacing, and heat-release surface orientation on heat transfer at boiling on a porous surface is studied. With increase in heat flow density the influence of a field decreases up to degeneration. The local characteristics of the heat transfer coefficient indicate an significant heat transfer enhancement in the case of a permeable electrode in comparison with a solid electrode which increases with the growth in the field intensity. The influence of electric field on the dynamics of vapor bubble growth is investigated. There have been obtained the expressions for the vapor bubble diameter and heat flow density without and under electric field which agree satisfactorily with the experimental data.
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