Multimegawatt nuclear electric propulsion with gaseous and vapor core reactors with MHD

Details Multimegawatt nuclear electric propulsion with gaseous and vapor core reactors with MHD Multimegawatt nuclear electric propulsion with gaseous and vapor core reactors with MHD

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..552..923k&link_type=abstract

Space Technology and Applications International Forum - 2001. AIP Conference Proceedings, Volume 552, pp. 923-930 (2001).

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Applications

Propulsion Reactors, Spaceborne And Space Research Instruments, Apparatus, And Components, Electrostatic, Collective, And Linear Accelerators

Scientific paper

This study investigated the development of a system concept for space power generation and nuclear electric propulsion based on a fissioning plasma core reactor (FPCR) with magnetohydrodynamic (MHD) power conversion system, coupled to a magnetoplasmadynamic (MPD) thruster. The FPCR is a liquid-vapor core reactor concept operating with metallic uranium or uranium tetrafluoride (UF4) vapor as the fissioning fuel and alkali metals or their fluorides as working fluid in a closed Rankine cycle with MHD energy conversion. Candidate working fluids include K, Li, Na, KF, LiF, NaF, etc. The system features core outlet temperatures of 3000 to 4000 K at pressures of about 1 to 10 MPa, MHD temperatures of 2000 to 3000 K, and radiator temperatures of 1200 to 2000 K. This combination of parameters offers the potential for low total system specific mass in the range of 0.4 to 0.6 kg/kWe. The MHD output could be coupled with minimal power conditioning to the variable specific impulse magnetoplasma rocket (VASIMR), MPD thrusters or other types of thruster for producing thrust at very high specific impulse (Isp=1500 to 10,000 s). .

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