The maximum coolant temperature in the VVR-Ts MAK-2 loop facility for the production of 99Mo was analyzed. The calculations showed that adequate accuracy and temperature 96.3°C are attained using more than 106 grid elements. Taking into account the temperature dependence of the thermal conductivity of the uranium-containing layer increases the maximum temperature in this layer by more than 10%. When boiling, vaporization, and turbulence are taken into account the temperature at the egress from the coolant changes within the error range as compared with the use of a simplified model.
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Translated from Atomnaya Énergiya, Vol. 127, No. 3, pp. 135–137, September, 2019.
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Kochnov, O.Y., Kolesov, V.V., Zevyakin, A.S. et al. Thermohydraulic Calculation of the Maximum Fuel and Water Temperature in the MAK-2 Facility. At Energy 127, 145–148 (2020). https://doi.org/10.1007/s10512-020-00601-x
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DOI: https://doi.org/10.1007/s10512-020-00601-x