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Results and Analysis of a Loss-of-Feedwater Induced ATWS (Anticipated Transient Without Scram) Experiment in the LOFT (Loss-of-Fluid Test) Facility

机译:在LOFT(流体损失测试)设施中,给水损失引起的aTWs(无预测瞬态)的实验结果和分析

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An anticipated transient without scram (ATWS), initiated by a loss of feedwater, was experimentally simulated in the Loss-of-Fluid Test (LOFT) pressurized water reactor (PWR). Primary system pressure was controlled using a two-position actuator relief valve to simulate a scaled power-operated relief valve (PORV) and safety relief valve (SRV) representative of those in a commercial PWR. Auxiliary feedwater injection was delayed during the experiment until the plant recovery phase where long-term shutdown was achieved by an operator-controlled plant recovery procedure without inserting the control rods. The system transient response predicted by the RELAP5/MOD1 computer code showed good agreement with the experimental data. (ERA citation 09:002402)

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