Calculations of 3D full-scale VVER fuel assembly and core models using MCU and BIPR-7A codes

Autor:	M. A. Kalugin, S. N. Bol’shagin, S. S. Aleshin, A. V. Pryanichnikov, Anastasia I. Shcherenko, E. K. Kosourov, E. A. Sukhino-Khomenko, A. M. Pavlovichev, D. A. Shkarovskiy, A. S. Bikeev, A. I. Shcherenko
Rok vydání:	2015
Předmět:	Nuclear and High Energy Physics Radiation Materials science Nuclear engineering Computation Full scale chemistry.chemical_element Uranium Power (physics) Microcontroller Nuclear Energy and Engineering chemistry General Materials Science Multiplication VVER Safety Risk Reliability and Quality Burnup
Zdroj:	Scopus-Elsevier
ISSN:	2195-8580 0932-3902
Popis:	Two types of calculations were made to compare BIPR-7A and MCU results for 3D full-scale models. First EPS (emergency protection system) efficiency and in-core power distributions were analyzed for an equilibrium fuel load of VVER-1000 assuming its operation within an 18-month cycle. Computations were performed without feedbacks and with fuel burnup distributed over the core. After 3D infinite lattices of full-scale VVER-1000 fuel assemblies (FA's) with uranium fuel 4.4 % enrichment and uranium-erbium fuel 4.4 % enrichment and Er2O3 1 % wt were considered. Computations were performed with feedbacks and fuel burnup at the constant power level. For different time moments effective multiplication factor and power distribution were obtained. EPS efficiency and reactivity effects at chosen time moments were analyzed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18ec65174a00e17bef567dbbe51ea0c8 https://doi.org/10.3139/124.110505 Zobrazit plný text záznamu