핵연료시험설비의 첨두핵연료피복재온도에 대한 운전변수의 영향
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The fuel test loop of HANARO has been modeled with MARS code to predict the peak cladding temperature (PCT) which is one of the design criteria for the design basis accidents. The PCTs have been calculated in the various operation parameters such as mass flow rate, coolant temperature, system pressure, the thermal power of test fuel, and the valves of safety function. In case of the room 1 LOCA the PCT increases with the increase of the thermal power, the coolant temperature, and the stroke time of the cold leg loop isolation valves as compared with that calculated in the design operation condition. However the effect of the stroke times of the safety injection valves and the depressurization valves on the PCT is negligible.