Liquid metal MHD heat transfer investigations apllied to fusion Tokamak reactor cooling ducts

V. G. Sviridov¹ - Yu. P. Ivochkin² - N. G. Razuvanov² - V. G. Zhilin² - L. G. Genin¹ - O. N. Ivanova¹ - K. V. Averianov¹

¹ MPEI -- Moscow Power Engineering Institute, Moscow, Russia
² IIHT -- Incorporated Institute of High Temperatures of the Russian Academy of Science, Moscow, Russia }

Abstract
The liquid metal heat transfer experimental investigations were carried out at the joint MPEI-IIHI magnetohydrodynamic (MHD) complex. The united scientific group examines the liquid metal flow in a horizontal heated tube without and under a longitudinal or a transverse magnetic field. Various configurations of the applied heat flux were taken into consideration. All these cases correspond to the flow in the Tokamak fusion reactor blanket or divertor. Temperature fields, temperature fluctuations field, heat transfer intensities were measured. Strong influence of thermogravitational convection was observed in a horizontal heated tube. Depending on the MHD-configuration, magnetic fields (MF) can enhance or weaken this effect. Tables 2, Figs 5, Refs 8.