Optimization of Multilayer Fuel Assemblies for Supercritical Water-Cooled Reactors with Mixed Neutron Spectrum
This paper presents an optimized design of fuel assembly for the fast zone of a mixed-spectrum supercritical water-cooled reactor (SCWR-M) which is proposed as one of the optional conceptual designs of SCWRs. The fuel assembly proposed has multilayer structure and is axially divided into several seed and blanket layers. Both sub-channel and MCNP analysis are performed to assess thermal-hydraulic and neutronic performances of the fuel assemblies aiming at improving safety and sustainability of a SCWR core. The effects of some design parameters, I.e. Axial configuration, fuel rod diameter, pitch to diameter ratio and duct wall clearance on the thermal-hydraulic and neutronic performance of assemblies are investigated. Results obtained so far indicate that the multilayer concept is feasible and promising. Reference ranges of some parameters of the multilayer fuel assembly are proposed for future analysis.
supercritical water-cooled reactor (SCWR) mixed spectrum fast zone multilayer assembly thermal-hydraulic and neutronic performance
Ting YANG Xiaojing LIU Xu CHENG
School of Nuclear Science and Engineering Shanghai Jiao Tong University Dong chuan Road 800, Shanghai 200240, China
国际会议
上海
英文
205-215
2010-10-10（万方平台首次上网日期，不代表论文的发表时间）