Thermal processes on electrodes during testing a lossless cathode in a diode circuit
Authors: Klimenko G.K., Konovalova A.I., Lyapin A.A.
Published in issue: #10(70)/2017
DOI: 10.18698/2308-6033-2017-10-1694
Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts
The article considers the experimental and analytical study results of the energy processes occurring during the tests on a lossless cathode, operating at the electrons thermal emission from a heated emitter surface. In particular, we consider thermal processes at the electrodes occurring during testing of a lossless cathode in a diode circuit. We analyzed the terms in the power balance at the electrodes for the steady-state heat transfer case. We investigated the mutual radiation exchange between the cathode and the anode. We show experimentally and theoretically that the anode presence has a significant effect on the cathode thermal balance. The cathode-compensators used in the electric propulsion system will increase gas economy and improve mass-dimension characteristics. In addition, when developing the electric propulsion system, which uses new working substances, the cathode-compensator design will not need to be changed.
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