Combustion MHD experiments at 5 tesla
An experimental linear MHD channel was designed, developed, and operated at high magnetic fields with a seeded combustion plasma. The channel's performance was investigated analytically with a one-dimensional model that included axial current leakage. The segmented Faraday MHD channel had a unique hot peg wall construction to resist current leakage and minimize thermal losses. Steady state MHD experiments were conducted at magnetic fields up to 5 tesla and voltages, currents, and thermal data were recorded. Early runs, at 5 tesla, displayed Hall voltage-current characteristics close to ideal. As the experiments progressed, the performance of the generator deteriorated due to axial current leakage. Current distributions on the electrodes were measured and current concentrations were observed on the upstream edge of the cathodes. This work has shown that near ideal Hall voltages can be obtained in a segmented Faraday generator at high magnetic fields when current leakage is not present.
- Research Organization:
- Stanford Univ., CA (USA)
- OSTI ID:
- 5498866
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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