Optimization of Pressure Release Rate in Nuclear Power Plant Containment Pressure Test
The containment pressure test of a nuclear power plant is an absolutely critical path work during unit overhaul period.The practical quality of containment pressure test affects the overall progress of unit overhaul,and the pressure re-lief rate is an important factor determining the test duration.This paper establishes a simulation model of internal and ex-ternal structures of the nuclear power plant's containment,studies and analyzes safety of the containment structure at a pressure relief rate of 25 kPa/h,and proposes a theoretical basis for improving pressure relief rate.Moreover,the simula-tion data are compared and verified with the scaled containment model,aiming to provide technical guidance for the com-prehensive optimization of containment pressure testing.
nuclear power plantcontainment vesselpressure relief ratepressure testnumerical simulation model
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