Modeling and Simulation on Main Cooling System of China Experimental Fast Reactor

The China Experimental Fast Reactor（CEFR） is a sodium-cooled fast reactor, whose operation characteristics of primary and secondary loops exert significant influence on reactor safe operation. The primary and secondary loops main cooling system models and the steam generator（SG） model are established by the system modeling tool JTopmeret. The codes can be edited to calculate the system parameters as the flow, pressure, temperature and others at any point of this system. Under the conditions of steady state and transient state, the errors among the simulation value and design value of system main parameters are less than 2%, which satisfies the precision requirement of system simulation.