METHOD FOR REACTOR CONTROL AND DEVICE FOR CARRYING OUT SAID METHOD (TREE VARIANTS)

摘要

The invention relates to the operation of nuclear reactors and can be used for controlling the reactivity of reactor safety control systems. The group of inventions consists of three variants of reactor control carried out with the aid of three embodiments of the inventive device. The first variant of a reactor operation and control is based on the use of spiral elastic control elements (1, 2, 3) having variable turn-to-turn distances L and the uniform variation of the concentration of a solid (liquid) desiccant through a reacting core. The second variant of the reactor operation and control is based on the use of spiral elastic heat-generating fuel elements having variable turn-to-turn distances L and the uniform variation of nuclear fuel concentration through the acting core. The third variant of reactor operation control is based on the use of spiral elastic delay elements having variable turn-to-turn distances L and the uniform variation of a moderator concentration through the reacting core. The main aim of said group of inventions is to obtain maximum uniformity of the power density field of a reactor and a maximum nuclear fuel burnup.