The behavior of radionuclides (Kr and Xe) and process gases (CO) in the vacuum-cesium channel of a thermionic converter reactor is modeled by solving Boltzmann’s equation numerically. Modeling techniques and a software system were developed in the course of this work. Series of calculations were performed for the variation of the initial flux of radionuclides, the dependence of the radionuclide flux at the egress on the flux at the ingress was obtained, the dependence of the carbon monoxide pressure in the opening of the connecting channel on the size of the opening was obtained, and the overgrowth time of the opening due to the condensation of cesium carbonate was estimated.
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References
V. S. Vasilkovskii, P. V. Andreev, and G. A. Zaritskii, “Problems of space energy and the role of nuclear power plants in their solution,” in: Int. Conf. on Atomic Energy in Space 2005, Moscow–Podolsk (2005), Vol. 1, pp. 20–25.
D. Yu. Lyubimov, Yu. V. Nikolaev, and A. A. Shumilov, “The effect of fission products on the phase composition of pre-stoichiometric uranium dioxide in the fuel elements of thermionic electricity generating channels,” Materialovedenie, No. 3 (132), 34–42 (2008).
A. S. Gontar, A. A. Gridnev, and D. Yu. Lyubimov, “Analysis of physicochemical processes in a multi-element EGC with communicating cavities of a fuel rod and an interelectrode gap,” At. Energ., 104, No. 4, 216–224 (2008).
V. I. Vybydanets, D. Yu. Lyubimov, and V. A. Koryukin, “Modeling the operation of a long-life thermionic converter with nuclear heating,” At. Energ., 118, No. 4, 323–326 (2015).
V. V. Sinyavskii, Methods and Means of Experimental Studies and Reactor Tests of Thermionic Power Generating Assemblies, Energoatomizdat, Moscow (2000).
M. N. Kogan, The Dynamics of Rarefied Gas, Nauka, Moscow (1967).
V. V. Aristov and F. G. Cheremisin, “Splitting of the inhomogeneous kinetic operator of the Boltzmann equation,” Dokl. Akad. Nauk SSSR, 231, No. 1, 49–52 (1976).
F. G. Cheremisin, “Conservative method for calculating the Boltzmann collision integral,” Dokl. Ross. Akad. Nauk, 357, No. 1, 53–56 (1997).
N. M. Korobov, Trigonometric Sums and Their Applications, Nauka, Moscow (1989).
L. N. Rozanov, Vacuum Technology, Vysshaya Shkola, Moscow (1990).
D. Yu. Lyubimov, I. I. Fedik, and A. A. Shumilov, “Influence of fission products on the output power of thermionic EGCs with communicating and separated cavities of a fuel rod and interelectrode gap,” At. Energ., 110, No. 6, 321–327 (2011).
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Translated from Atomnaya Énergiya, Vol. 128, No. 3, pp. 130–135, March, 2020
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Abannikov, V.V., Kloss, Y.Y., Shaikhatarov, O.K. et al. Kinetic Theory Analysis of Radionuclide Behavior in the Vacuum-Cesium System of a Thermionic Converter Reactor. At Energy 128, 136–142 (2020). https://doi.org/10.1007/s10512-020-00664-w
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DOI: https://doi.org/10.1007/s10512-020-00664-w