Journal of Siberian Federal University. Engineering & Technologies / Calculation of Evaporation term Storage of Radioactive Waste

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2014 7 (3)
Authors
Popkov, Vladislav A.; Naumenko, Nikolay A.; Kulagina, Tatiana A.
Contact information
Popkov, Vladislav A.:aGUP «Mining and Chemical Combine» 53 Lenin Str., Zheleznogorsk, 662972, Russia; Naumenko, Nikolay A.OAO «Engineering Center of Nuclear containers» 14 pl. Academician Kurchatov, Moscow, 123182, Russia; Kulagina, Tatiana A.:Siberian Federal University 79 Svobodny, Krasnoyarsk, 660041, Russia
Keywords
thermal calculations; temperature field; cementing; liquid radioactive waste; pulp; cement compounds
Abstract

The results of theoretical calculation of the temperature of the thermal field in the standard 200 – liter barrel for three different processes: cooling water and the cement compound, heat release of radioactive decay of radionuclides in the cement – rated compounds, hardening the cement compound. With the help of the numerical model has been shown that in the hardening cement compound internal volume Boch matches heated to 90 °C or more, and with respect to the central regions of overheating the peripheral is 25 to 30 degrees. Created on installation for direct measurement of the temperature field in the barrel and on the surface of its heat exchange with the environment assessed thermophysical characteristics of the barrel and the curing process of the cement compound. Calculated the average heat transfer coefficient for the entire cooling surface was equal to 9.86 barrels vatt/m2·K, which is almost two times higher than the value calculated by conventional criteria equations. The intensity of heat in the process of hardening of the cement compound significantly increases with a decrease in J/Q < 0.5. It is shown that the proposed numerical model with sufficient accuracy for engineering calculations describes thermal processes raw occurring in the hardening cement compound in a barrel at the J/Q ≥ 0.5

Pages
340-358
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/10382

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