ELECTRICAL CHARACTERISTICS AND LOSS MECHANISMS OF A NON-EQUILIBRIUM LINEAR MHD GENERATOR.
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GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV
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The purpose of the experiments was to determine the electrical characteristics of the non-equilibrium, linear MHD generator and to isolate the causes of the Hall potential losses in the generator. The generator working fluid was atmospheric pressure xenon, with a conductivity range of 100 to 800 Mhosm and a Hall parameter range of 3 to 11. With the generator operating in the equilibrium mode, the measured voltage-current characteristics were in agreement with the uniform MHD generator theory. In the presence of non-equilibrium ionization the Hall voltage and the Faraday generator load characteristics were up to a factor of two below the theoretical values. The cause of this reduction was attributed to gas dynamic flow disturbances, Lorentz forces and non-uniform non-equilibrium ionization. All of these effects reduced the Hall potential and the transverse current level. Author
- Electric Power Production and Distribution
- Plasma Physics and Magnetohydrodynamics