Commissioning Test and Experience for Pool Water Management System in an Open-pool Type Research Reactor

The main fluid systems consist of a primary cooling system (PCS) for adequate cooling of the heat generated in the reactor core, a pool water management system (PWMS) for purifying the pool water and PCS coolant and cooling the pool water, and a hot water layer system (HWLS) for providing a good shielding barrier for many kinds of radio-nuclides from the reactor core. The PWMS was designed to control the chemistry of the pool water and primary coolant within the allowable limits to minimize the corrosion of the nuclear fuel cladding and systems and to maintain the reactor and service pool water temperature within the design value. Before starting the normal operation of the new research reactor, the systems should be tested to check whether they are operating well according to the performance requirements. In this paper, the brief system description, flushing methodology, system performance test procedure, and commissioning experiences of the PWMS are described.