Development of three dimensional transient analysis code STTA for SCWR core

Autor:	Yao Dong, Bingde Chen, Ping Yang, Wenbo Zhao, Lianjie Wang
Rok vydání:	2015
Předmět:	Core (optical fiber) Coupling Neutron transport Materials science Nuclear Energy and Engineering Hydraulics law Nuclear engineering Thermal Transient (oscillation) Boundary value problem Core model law.invention
Zdroj:	Annals of Nuclear Energy. 78:26-32
ISSN:	0306-4549
DOI:	10.1016/j.anucene.2014.12.025
Popis:	A coupled three dimensional neutronics/thermal-hydraulics code STTA (SCWR Three dimensional Transient Analysis code) is developed for SCWR core transient analysis. Nodal Green’s Function Method based on the second boundary condition (NGFMN_K) is used for solving transient neutron diffusion equation. The SCWR sub-channel code ATHAS is integrated into NGFMN_K through the serial integration coupling approach. The NEACRP-L-335 PWR benchmark problem and SCWR rod ejection problems are studied to verify STTA. Numerical results show that the PWR solution of STTA agrees well with reference solutions and the SCWR solution is reasonable. The coupled code can be well applied to the core transients and accidents analysis with 3-D core model during both subcritical pressure and supercritical pressure operation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::251d9cc8dc5339418ae795d7b948151f https://doi.org/10.1016/j.anucene.2014.12.025 Zobrazit plný text záznamu Full Text from ScienceDirect