Reflood Investigation of Model Fuel Assemblies of Light-Water Reactors for a Loss-of-Coolant Accident

Autor:	E. B. Popov, S. S. Bazyuk, N. Ya. Parshin, Yu. A. Kuzma-Kichta
Rok vydání:	2014
Předmět:	Materials science Nuclear Energy and Engineering Heat flux Nuclear engineering Mass velocity Wetting front VVER Residual Loss-of-coolant accident
Zdroj:	Atomic Energy. 116:343-349
ISSN:	1573-8205 1063-4258
DOI:	10.1007/s10512-014-9863-7
Popis:	The results of a reflood investigation of model VVER and PWR fuel assemblies for maximum design-basis and beyond design-basis accidents performed on the RBHT, SVD, and PARAMETR stands are presented. The variation ranges of the regime parameters are: initial temperature of fuel element 460–600°C; mass velocity of water 47–160 kg/(m2·sec), underheating at the entry into the model fuel assembly 11–108°C; pressure 0.14–0.42 MPa; and, linear heat flux density simulating the residual heat release 0–2.3 kW/m. A colligating relation describing the experimental data to within 30% is obtained for the wetting front of model fuel assemblies, which makes it possible to calculate the cool-down time of model fuel assemblies with different designs and evaluate the reflooding time of VVER and PWR.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c67bba26d2f73c9951006e0b113673d3 https://doi.org/10.1007/s10512-014-9863-7 Zobrazit plný text záznamu Full text from SpringerLink