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Experiments on High‐Temperature Inert Gas Plasma MHD Electrical Power Generation with Hall and Diagonal Connections
Author(s) -
Komatsu Fumihiko,
Tanaka Manabu,
Murakami Tomoyuki,
Okuno Yoshihiro
Publication year - 2015
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.22761
Subject(s) - magnetohydrodynamics , magnetohydrodynamic drive , inert gas , plasma , diagonal , hall effect , connection (principal bundle) , mechanics , argon , materials science , magnetic field , physics , atomic physics , geometry , mathematics , nuclear physics , quantum mechanics , composite material
SUMMARY High‐temperature inert gas (argon) plasma magnetohydrodynamic (MHD) electrical power generation using a linear shaped channel with Hall and diagonal connections has been conducted. It is revealed by observation by using a high‐speed camera that the MHD power‐generating plasma is almost entirely stable regardless of the connection type. Enthalpy extraction ratios of 5.6% for the Hall connection, 6.7% for the diagonal connection (diagonal angle 53° to 66°), and 10.1% for the diagonal connection (diagonal angle 36° to 48°) have been achieved under the operating conditions of an inlet total temperature of 9000 K, an inlet total pressure of 0.105 MPa, and a magnetic flux density of 4.0 T. The output power can suffer from a low electric field in the upstream region in a Hall connection, and is improved under the no Hall current condition in a diagonal connection.