Disk generator

The use of the disk generator as a practical device for power generation is discussed and compared to a linear device in terms of maximum allowable electric fields, magnetic field utilization, and surface-to-volume ratio. The swirl induced by the azimuthal force acting on the radial current is found to be of prime importance for the generator´s performance. For certain values of the inlet swirl opposing the azimuthal Lorentz force, the output current becomes a conductive current as in a Faraday generator, and this results in increased efficiency for given Hall coefficients and loading. Examples ad design concepts are discussed.