Abstract

Magnetohydrodynamic (MHD) power generation is possible when an electrically conducting fluid such as a hot ionized gas passes through a magnetic field under the appropriate conditions. In electric utility power generation, a magnetohydrodynamic generator is combined with a conventional steam turbine. The system is a combined cycle; the fuel of interest is typically pulverized coal. Environmental intrusion from MHD plants is projected to be minimal.

The fundamentals and system components of MHD power generation are discussed, including the geometries of various MHD generators, types of electrodes and magnets used, materials of component construction, interfaces between the MHD generator and the steam turbine, effect of type of fuel utilized, and the efficiency and economic factors of proposed plants. Projects under development in the United States and around the world are presented.