Plasma plumes for tapping the electromotive force of the solar wind

Details Plasma plumes for tapping the electromotive force of the solar wind Plasma plumes for tapping the electromotive force of the solar wind

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991stin...9126106h&link_type=abstract

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Computer Science

Performance

Electromotive Forces, Interplanetary Magnetic Fields, Plasmas (Physics), Plumes, Propulsion System Performance, Solar Wind, Magnetohydrodynamic Waves, Planetary Magnetospheres, Plasma Guns, Solar Electric Propulsion, Solar Wind Velocity, Space Flight, Tethering

Scientific paper

Highly-conducting plasma plumes ejected across the interplanetary magnetic field are proposed as a technique for extracting electric power from the solar wind. Although the power density of the solar wind is very low (approximately 10-3 W/sq m), plumes generated by plasma guns may be capable of extending thousands of kilometers to generate more than 10 megawatts. Calculations indicate that the extractable power is proportional to the mass ejection rate of the plume, with net power production possible when the plume velocity is sufficiently less than the solar wind Alfven velocity (approximately 80 km/sec). Applications could include space propulsion outside of planetary magnetospheres and a lunar power station.

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