Code Simulation of a Preliminary Passive Moderator Cooling System for Canadian SCWR Conceptual Design

Abstract

A Passive Moderator Cooling System for the Canadian SCWR (supercritical water-cooled reactor), using a flashing-driven natural circulation loop, is being developed at AECL. A preliminary conceptual design of the passive moderator cooling system for normal operation was simulated using the CATHENA code. Major dimensions for the conceptual design of passive moderator cooling system were established. An operation map was constructed for the established dimensions to determine the operation power range of the conceptual design of passive moderator cooling system.