| 摘要 |
FIELD: physics, nuclear physics. ^ SUBSTANCE: invention relates to atomic energetic and is meant for use in pressurised water reactors. Fuel assembly contains micro-fuel-elements, perforated collectors for the supply of the coolant, guide tubes for the regulating rods, shank and head. Micro-fuel-elements are placed in a perforated steel case. Guide tubes are longitudinally mounted inside the case. Collectors for the supply of the coolant and tubes for the regulating rods are made from a zirconium alloy. The case is made mobile in a longitudinal direction relative to the head. ^ EFFECT: increase in the burnup fraction of micro-fuel-elements by reducing the amount of steel in the fuel assembly. ^ 2 cl, 2 dwg |
