INFLUENCE OF ELECTROPHYSICAL PARAMETERS ON INTENSITY OF ELECTRIC CONVECTION

Abstract

Dielectric liquids, being under the action of an electric field, are investigated in the paper aiming at the mechanism clarification of the heterocharge formation in a high-ohm liquid at the covering of an electric field. The analysis of conditions of the electroconvection origin at the heterocharge distribution of potential is also the aim of the paper. As a result the relation, discribing relaxation processes at the field covering on a high-ohm liquid, has been obtained. A problem of the electroconvective heat exchange in the representation of a boundary layer has been solved. The generalized dependence of heat transfer, dependence taking into account the isothermal mechanism of the heat carrier electrization, has been suggested. Experimental investigations of the convective heat tranfer to a liquid in an electric field in the dependence on the presense of covering on a heat releasing surface have been held. It has been established, that heterogeneities, connected with coverings, are not essential in the comparison with heterogeneity of a medium, formed in the result of the high-volt polarization. Measurements of a liquid potential in a rotating cell have been held. The calculation dependence obtained may be used in calculations of electroconvective heat exchangers. The practical use of the paper results will make it possible to improve constructions of electroconvective heat exchangers. The paper results will make it possible to understand processes, taking part in dielectric liquids under the action of an electric field and to intensify heat transfer processesAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio