The conceptual design of reactor cooling system for an advanced research reactor

An advanced Research Reactor (ARR) consists of an open-tank-type reactor assembly within a light water pool and generates thermal power of 20 MW. The thermal power is including a fission heat in the core, a fuel generated heat temporary stored in the pool, a circulating pumps generated heat and a neutron reflecting heat in the reflector vessel of the reactor. In order to remove the heat load, the reactor cooling system is composed of a primary cooling system, a primary cooling water purification system and a reflector cooling system. The primary cooling system can remove the heat load including the fission heat in the core, the fuel generated heat temporary stored in the pool and the circulating pumps generated heat. The purification system must maintain the quality of the primary cooling water. And the reflector cooling system must remove the neutron reflecting heat in the reflector vessel of the reactor and maintain the quality of the reflector. In this study, the conceptual design of the reactor cooling system has been carried out using a design methodology of the HANARO within a permissible range of safety. As results, each system has been established the conceptual design including design requirements, performance requirements, design restrictions, system descriptions and system operation to maintain the each system function