Numerical simulation of nonequilibrium plasma in an MHD power generator

Journal Article · Sun Feb 01 04:00:00 EST 1987 · J. Propul. Pow.; (United States)

DOI:https://doi.org/10.2514/3.22954· OSTI ID:6495242

Kabashima, S; Yoshikawa, Y

The r-theta two-dimensional, time-dependent simulations of nonequilibrium plasma are carried out to develop a stable plasma with a fully ionized seed in a disk-type closed-cycle MHD power generation system. The working gases were Ar/K, Ar/Cs, He/K, and He/Cs. For all of the working gases considered, stable plasma with a fully ionized seed is obtained in nearly the entire generator, except in the relaxation region close to the anode. As the seed material, cesium produces better performance than potassium. Even when helium is used as the working gas instead of argon, it is expected that good performance can be obtained by suitably adjusting the gas conditions, magnetic field, and load resistance. 15 references.

• Research Organization: Tokyo Institute of Technology, Yokohama, Japan
• OSTI ID: 6495242
• Journal Information: J. Propul. Pow.; (United States), Journal Name: J. Propul. Pow.; (United States) Vol. 3; ISSN JPPOE
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300103* -- MHD Generators-- Materials
Components
& Auxiliaries
ALKALI METALS
CLOSED-CYCLE MHD GENERATORS
DIRECT ENERGY CONVERTERS
ELEMENTS
FLUIDS
GASES
HELIUM
KRYPTON
MATHEMATICS
METALS
MHD GENERATORS
NON-EQUILIBRIUM PLASMA
NONMETALS
NUMERICAL ANALYSIS
PERFORMANCE
PLASMA
POTASSIUM
RARE GASES
TIME DEPENDENCE
WORKING FLUIDS