NEW THREE-DIMENSIONAL EQUIVALENT CIRCUIT OF DIAGONAL TYPED MHD GENERATOR.

For a large-scale diagonal type generator with oil combustion gas plasma, a new three-dimensional equivalent circuit is proposed, which takes into account the leakage resistance of the duct insulator surface, the boundary layer, the ion slip, the effect of the finite electrode segmentation, etc. Next, through the relation between the Hall voltage per electrode pitch region and the load current obtained by use of the equivalent circuit, a suitable size and number of the space elements per region are determined. Further, by comparing in detail the electrical performances of two types of diagonal generators with diagonal conducting and insulating sidewalls, three-dimensional effects of the sidewalls are noted.