Accident Analysis of Station Blackout of Pool-Type Research Reactor during High Power Operation

Based on the main event sequence,RETRAN-02 code is used to analyze the power supply station blackout accident and key thermal parameters of a pool-type research reactor and demonstrate the enduring capability of the accident.The result proves that the decay heat of the reactor could be removed through the idler wheel rotating,residual heat removal system supported by reliability power,and the natural circulation,which will prevent the nuclear safety accidents.The accessorial cooling supported by reliability power is an effective measure to relieve the accident,and the power can last for an hour at least.