Thorium based molten salt reactor-solid fuel(TMSR-SF)design is an innovative reactor concept that uses high-temperature tristructural-isotropic(TR1SO)fuel with a low-pressure liquid salt coolant.In anticipation of get...Thorium based molten salt reactor-solid fuel(TMSR-SF)design is an innovative reactor concept that uses high-temperature tristructural-isotropic(TR1SO)fuel with a low-pressure liquid salt coolant.In anticipation of getting licensed applications for TMS R-S F in the future,it is necessary to fully understand the significant features and phenomena of TMSR-SF design,as well as its transient behavior during accidents.In this paper,the safety-relevant phenomena,importance,and knowledge base were assessed for the selected events and the transient of TMSR-SF during station blackout scenario is simulated based on RELAP/SCDAPSIM Mod 4.0.The phenomena having significant impact but with limited knowledge of their history are core coolant bypass flows,outlet plenum flow distribution,and intermediate heat exchanger(IHX)over/under cooling transients.Some thermal hydraulic parameters during the station blackout scenario are also discussed.展开更多
文摘Thorium based molten salt reactor-solid fuel(TMSR-SF)design is an innovative reactor concept that uses high-temperature tristructural-isotropic(TR1SO)fuel with a low-pressure liquid salt coolant.In anticipation of getting licensed applications for TMS R-S F in the future,it is necessary to fully understand the significant features and phenomena of TMSR-SF design,as well as its transient behavior during accidents.In this paper,the safety-relevant phenomena,importance,and knowledge base were assessed for the selected events and the transient of TMSR-SF during station blackout scenario is simulated based on RELAP/SCDAPSIM Mod 4.0.The phenomena having significant impact but with limited knowledge of their history are core coolant bypass flows,outlet plenum flow distribution,and intermediate heat exchanger(IHX)over/under cooling transients.Some thermal hydraulic parameters during the station blackout scenario are also discussed.
