METHOD FOR CALCULATING THE OUTPUT CHARACTERISTICS AND ELECTRODE TEMPERATURE OF THERMIONIC EMISSION ELECTRICITY-GENERATING CHANNELS

摘要

To calculate the output characteristics and electrode temperature of thermionic emission electricity-generating channels, one-dimensional stationary models of thermoelectroconduction processes, which are based on the principle of additivity of the local current-voltage characteristic, are most widely used. The essence of this principle is the assumption that the parameters of the discharge in the interelectrode space depend only on the local temperature of the electrodes and the potential difference between them. This makes it possible to calculate the current density in the interelectrode gap by interpolating the experimental dependence of the discharge current on the voltage between the electrodes and their temperature, obtained in model thermionic emission converters with isothermal and equipotential electrodes.