The Viscosity of Molten Salts Based on the LiF–BeF2 System
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
The Viscosity of Molten Salts Based on the LiF–BeF2 System
|
|
| Автор |
Tkacheva, O. Y.
Rudenko, A. V. Kataev, A. A. Mushnikov, P. N. Kholkina, A. S. Zaikov, Y. P. |
|
| Тематика |
AND URANIUM FLUORIDES
BERYLLIUM DYNAMIC VISCOSITY FUEL SALT INTERMEDIATE COOLANT MOLTEN SALT NUCLEAR REACTOR MOLTEN SALTS OF LITHIUM ROTATIONAL VISCOMETRY SHEAR RATE AUSTRIA COOLANTS FUSED SALTS LITHIUM COMPOUNDS MIXTURES MOLTEN MATERIALS MOLTEN SALT REACTOR SHEAR DEFORMATION SODIUM CHLORIDE TEMPERATURE DISTRIBUTION VISCOSITY VISCOSITY MEASUREMENT AND URANIA FLUORIDE DYNAMIC VISCOSITIES FUEL SALT INTERMEDIATE COOLANT MOLTEN SALT MOLTEN SALT NUCLEAR REACTOR MOLTEN SALT OF LITHIUM ROTATIONAL VISCOMETRY SHEAR-RATE BERYLLIUM FLUORIDE LITHIUM SALT URANIUM VISCOSITY FLUORINE COMPOUNDS |
|
| Описание |
Abstract: The temperature dependences of the dynamic viscosity of molten lithium and beryllium fluorides, which are considered as candidate compositions for fuel and coolant of the molten salt reactor (MSR) burner of long-lived actinides from spent nuclear fuel of a VVER 1000/1200 (pressurized water reactor), were obtained by rotational viscometry using an FRS 1600 high-temperature rheometer (Anton Paar, Austria). Molten salt mixtures 0.66LiF–0.34BeF2 and (0.73LiF–0.27BeF2) + UF4 containing 1 and 2 mol % UF4 were studied with regard to the intermediate and fuel circuits of the MSR. The salt mixtures were prepared by direct melting of components and certified using X-ray phase and elemental analyses. The shear rate parameter was selected according to the viscosity curves obtained in the melts at a temperature of 700°C. It was found that the viscosity does not depend on the shear rate in the range of γ = 6–20 s–1. When measuring the temperature dependence of viscosity, the γ value was 11 s–1. The experimentally obtained values of the viscosity of the LiF–BeF2–UF4 melts in the temperature range from liquidus to 800°C are described by the linear equation log η = a + b/t, but their temperature coefficients differ noticeably, which indicates a significant dependence of the viscosity of these melts on composition and temperature. The obtained viscosity values for the 0.66LiF–0.34BeF2 melt agree with the available published data within 7–10% in the temperature range of 650–750°C. With an increase in the LiF content, the viscosity of the melt decreases: it is 20% lower in the 0.73LiF–0.27BeF2 melt at t = 650°C. However, when 2 mol % UF4 is added, the viscosity of the fuel salt 0.73LiF–0.27BeF2 + UF4 increases by 10% at the same temperature. © 2022, Allerton Press, Inc.
|
|
| Дата |
2024-04-08T11:07:27Z
2024-04-08T11:07:27Z 2022 |
|
| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
|
| Идентификатор |
Tkacheva, OY, Rudenko, AV, Kataev, AA, Mushnikov, PN, Kholkina, AS & Zaikov, YP 2022, 'The Viscosity of Molten Salts Based on the LiF–BeF2 System', Russian Journal of Non-Ferrous Metals, Том. 63, № 3, стр. 276-283. https://doi.org/10.3103/S1067821222030117
Tkacheva, O. Y., Rudenko, A. V., Kataev, A. A., Mushnikov, P. N., Kholkina, A. S., & Zaikov, Y. P. (2022). The Viscosity of Molten Salts Based on the LiF–BeF2 System. Russian Journal of Non-Ferrous Metals, 63(3), 276-283. https://doi.org/10.3103/S1067821222030117 1067-8212 Final All Open Access; Green Open Access https://cvmet.misis.ru/jour/article/download/1356/581 https://cvmet.misis.ru/jour/article/download/1356/581 http://elar.urfu.ru/handle/10995/131459 49158134 10.3103/S1067821222030117 85133451498 000821035400005 |
|
| Язык |
en
|
|
| Права |
Open access (info:eu-repo/semantics/openAccess)
|
|
| Формат |
application/pdf
|
|
| Издатель |
Pleiades journals
|
|
| Источник |
Russian Journal of Non-Ferrous Metals
Russian Journal of Non-Ferrous Metals |
|