Abstract
Abstract In the present study, the control system of RELAP5-3D input deck of Kuosheng Nuclear Power station is constructed. The plant employs a BWR6 (Boiling Water Reactor) reactor with Mark III containment and is operated by Taiwan Power Company. The rated power of the system is 2,894 MWth. The RELAP5-3D input deck is obtained from Institute of Nuclear Energy Research. The control system is formulated based on the control system embedded in the plant engineering simulator, which is developed on the 3 Key Master platforms. In the present study, the deck is initialized to a steady state condition with constant power. The feedwater control, pressure control, and recirculation flow control are incorporated sequentially. The three- element feewdwater control scheme is adopted. The elements are“narrow range water level”, “steam mass flow rate”, and “feed water mass flow rate”. After the deck is initialized to steady state with the feedwater control system, the Pressure Control is added to govern the valve area of Turbine Control Valves. The Recirculation Flow Control is incorporated to control the mass flow rate of Recirculation Flow. Finally, the Point Kinetic is adopted for the transient simulation. The results of the power tests "100% power load rejection test", "96% power main steam isolation valve closure test", and "68% power recirculation pump trip test," are used to test the validity of the control system of the input deck.