Применение магнитной жидкости с фазовым переходом в погружных электромеханических преобразователях

Abstract

Results of mathematical modeling of interrelated electromagnetic and thermal processes in submersible electromechanical converters with magneto-liquid filling are presented. A number of modifications of submersible electromechanical transducers are performed with the filling of the internal volume with a magnetic fluid serving simultaneously as a sealant agent and a refrigerant. Mechanical characteristics are obtained, th e dependences of the distribution of magnetic induction and the density of the eddy current in the active part of the submerged converter. The use of a magnetic fluid in electromechanical converters will provide an increase in the electromagnetic torque by 8-10 % due to a decrease in the magnetic resistance of the air gap, and also improve the conditions for heat exchange with the surrounding medium.