NEUTRONICS AND THERMAL-HYDRAULICS ANALYSES OF THE PELLET BED REACTOR FOR NUCLEAR THERMAL PROPULSION

摘要

Neutronics and thermal-hydraulics design and analyses of the pellet bed reactor for nuclear thermal propulsion are performed based on consideration of reactor criticality, passive decay heat removal, maximum fuel temperature, and subcriticality during a water flooding accident. Besides calculating the dimensions of the reactor core to satisfy the excess reactivity requirement at the beginning-of-mission of 1.25