Effect of Carbon Dioxide on Electrode Voltage Fall on MHD Generator Performance.
STANFORD UNIV CALIF INST FOR PLASMA RESEARCH
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A series of experiments were performed to investigate the effect of carbon dioxide concentration on electrode voltage fall in a simulated MHD generator with an argo-carbon dioxide-potassium plasma. It was observed that increases in carbon dioxide addition resulted in very significant increases in electrode voltage drops. The electrode fall increased with the increase of carbon dioxide concentration, the increase of applied current, and the decrease in electrode temperature. Further, the voltage drops were larger at the cathode than at the anode. Experimental electrical conductivities were also reported. Electric fields were applied with a resulting maximum transverse current density of 0.500 ampscm squared molecular additions of up to 5 were injected into the stream. A theoretical model for the electron number density and electric potential was postulated and the results were compared with experimental electrode voltage drops. Modified author abstract
- Electric Power Production and Distribution
- Plasma Physics and Magnetohydrodynamics