STEAM-COOLED POWER REACTOR EVALUATION GRAPHITE-MODERATED, BOILING WATER, STEAM-SUPERHEAT REACTOR

摘要

A conceptual reference design of a 318 Mw(e) Graphite Moderated Boiling and Superheating Reactor (GBSR) is described. In this concept, the coolant is light-water-and-steam in pressure tubes which pass through the graphite moderator. Fuel slugs of uranium carbide in a graphite matrix are in channels in the moderator, separated from the coolant by the graphite. The reactor is designed for refueling under load and for direct maintenance. Turbine throttle steam conditions are 1800 psig/1000°F with 1000°F reheat which yields a net cycle efficiency of 41.8%.