Numerical calculations and analyses in a diagonal type MHD generator

  • Lê Chí Kiên

Abstract

This study considers the affect of magnetic field on the electrical current distribution in the exit areas of a diagonal MHD generator. The 2-D analysis has been carried out and the computational calculations have been made with the working fluid of helium seeded by cesium. The result shows that the decreasing of magnetic induction can create the constant current distribution at the exit area of the channel, and only a little affect in the middle area of the channel. There IS no need a large ballast resistor for the electrodes. Furthermore, the resistance of the exit area and the current distnbution at the electrode align decreases with the decreasing of the magnetic induction. It is seen clearly that the output electrodes of the MHD generator should be organized in the decreasing area of the magnetic field, because it can be significant to make the electrical parameters of generator better.

điểm /   đánh giá
Published
2017-09-20
Section
Articles