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Characteristics of Cylindrical Thermionic Converters with Niobium Polycrystal-Based Collectors at High Temperatures of Electrodes
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Abstract
The results of experimental studies on voltagecurrent characteristics (VCC) of cylindrical cesium thermionic converters are given at high temperatures of electrodes (TE=2000 to 2100K and TC=1000 to 1300K), the emitter being made of mostly 110-oriented tungsten and the collectors of polycrystalline and oxygen-containing niobium.
It is shown that the optimum operating temperature for the polycrystalline Nb collector is 1100K while for the oxygen-containing one it is 1200K. The peak power generated at TE=2100K is 8,5 and 17,0 W/cm2 correspondingly.
The VCC family cited in the paper is of considerable interest for making thermal power calculations and optiziming the output electrical parameters of thermionic electricity-generating channels.
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Kalandarishvili, A. and Kashiya, V., "Characteristics of Cylindrical Thermionic Converters with Niobium Polycrystal-Based Collectors at High Temperatures of Electrodes," SAE Technical Paper 929499, 1992, https://doi.org/10.4271/929499.Also In
References
- Babanin V.A. Kolyshkin I.I. Kuznetsov V.l. et al. Thermionic Converter at Very High Emitter Themperatures 2nd Interbranch Conference “Nuclear Power Engineering in Space. Physics of Thermionic Energy Converters” October 28 November 2 1991 Sukhumi 9
- Sergeev D.I. Titkov A.S. Adsorbing Electrodes Moscow Energoizdat publishers 1982 128
- Savvov P.S. Skrebova S. B. Chramushin N.J. et al. Change of the collector surface characteristics of the TIC during long time 1 - Interbranch Conference “Nuclear Power Engineering in Space” May 15-19 1990 75
- Rufeh F. Experimental analysie of Converter performance Report on 3rd International Conference on Thermionic Electrical Power Generation Julich. FRG 1972 3 1061 1080
- Gverdtsiteli I. G. Tskhakaya V. K. Tsakadze L.M. et al. Studies on Oxygen-Containing Niobium as a TIC Collector “Thermionic Conversion of Thermal-into-Electrical Energy” Institute of Physics and Energy 1980 160 170
- Kalandarishvili A.G. Working Medium Sources for Thermionic Energy Converters Energoatomizdat publishers Moscow 1986 184
- Gverdtsiteli I.G. Kalandarishvili A.G. Kashiya V.G. Studies on TIC with Cesium-Bismuth Filling “Pis'ma V ZHTF 1977 3 22 1199 1202
- Kobyakov V. P. Taranovskaya V.N. Structure and Emission Properties of TIC Electrodes Made of “Oxygen-Containin” 2rd Interbranch Conference “Nuclear Power Engineering in Space. Physics of Thermionic Energy Converters” October 28 November 2 1991 Sukhumi 63