NUCLEAR REACTOR FUEL ASSEMBLY

摘要

FIELD: nuclear power engineering, especially production of water-moderated reactor core. SUBSTANCE: fuel assembly has set of fuel elements made in the form of helical spirals wound from claddings and accommodating powdered fuel. Fuel elements are placed through assembly volume so that their are spaced apart through distance not shorter than that depending on external diameter of spiral and cladding diameter. At least part of fuel elements are provided with external and/or internal lock which prevents deformation of spiral. EFFECT: improved design of fuel assembly. 5 cl, 13 dwgg