Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system

Nob Harada, Kazumi Tsunoda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Design and performance prediction studies of a disk type magnetohydrodynamic (MHD) generator which is applied to the non- equilibrium plasma generator (NPG) system have been carried out. The main objective of the present study is to know whether sufficiently high output performance demonstration can be possible with the disk generator which is planned to be used for NPG-MHD disk pulse power demonstration. Present numerical simulation showed that the original constant height channel could provide not more than 20% of enthalpy extraction because its channel shape could not sustain working plasma in the stable regime against ionization instability throughout the channel. We concluded that in order to obtain much higher generator performance, detailed design of channel shape was necessary. Design work has also been carried out based upon the concept that local electron temperature must be kept at 5000K, i.e. the plasma must be controlled to locate at the center of stable regime. With the designed channel, enthalpy extraction of up to 40% and output power of 7.2MW can be successfully expected under the thermal input of 18MW. In addition, the designed channel requires no major modification of the supersonic nozzle, the inlet swirl vanes and the configuration of magnet system.

Original languageEnglish
Title of host publication26th Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9780000000002
Publication statusPublished - 1995
Event26th Plasmadynamics and Lasers Conference, 1995 - San Diego, United States
Duration: 1995 Jun 191995 Jun 22

Other

Other26th Plasmadynamics and Lasers Conference, 1995
CountryUnited States
CitySan Diego
Period95/6/1995/6/22

Fingerprint

Magnetohydrodynamic converters
Plasmas
Enthalpy
Demonstrations
Plasma stability
Electron temperature
Ionization
Magnets
Nozzles
Computer simulation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Harada, N., & Tsunoda, K. (1995). Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system. In 26th Plasmadynamics and Lasers Conference [AIAA 95-1936] American Institute of Aeronautics and Astronautics Inc, AIAA.

Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system. / Harada, Nob; Tsunoda, Kazumi.

26th Plasmadynamics and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 1995. AIAA 95-1936.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harada, N & Tsunoda, K 1995, Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system. in 26th Plasmadynamics and Lasers Conference., AIAA 95-1936, American Institute of Aeronautics and Astronautics Inc, AIAA, 26th Plasmadynamics and Lasers Conference, 1995, San Diego, United States, 95/6/19.
Harada N, Tsunoda K. Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system. In 26th Plasmadynamics and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 1995. AIAA 95-1936
Harada, Nob ; Tsunoda, Kazumi. / Study of A disk MHD generator for nonequilibrium plasma generator (NPG) system. 26th Plasmadynamics and Lasers Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 1995.
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