Electrical equivalent circuits of D.C. MHD generators

Abstract

In the paper the equivalent circuits of generators with the segmented electrodes electrically connected in various ways are determined (generators with the electrodes connected in series, with Halland Faraday-connected electrodes). Constant gas dynamic parameters, constant generator cross-section, constant magnetic field and uniformity of current density and electric field are assumed. Electrode effects, end effects and “ion slip” are neglected.

From the equivalent circuits the electrical terminal values of the generator as a function of the geometric dimensions of the generator, the Hall parameter and the connexions system of electrodes can easily be determined.