GEFEST800 Software System for On-Line Calculations of BN-800 Neutron-Physical Characteristics in a Nonstationary Regime

The paper presents the simulation results of the BN-800 reactor being placed in a critical state upon completion of 5 microcampaign when detectors are placed inside the reactor building in the vicinity of discharge elevators with a demonstration of signal levels in off-threshold (based on 235U) and threshold (based on 238U) detectors. The calculated data are supplemented by experimental signals from non-threshold detectors located in the same region of the reactor. The computational simulation of the reactor exit to the critical state was carried out using three algorithms: the method of point kinetics; by solving a non-uniform stationary equation with an external neutron source; by solving a non-stationary equation with a space-time dependence of the neutron flux density, taking into account the presence of an external neutron source in the reactor. In addition to directly evaluating the calculated behavior of the reactor power in the simulated process, the features of the used solution algorithms are analyzed.

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GEFEST800 Software System for On-Line Calculations of BN-800 Neutron-Physical Characteristics in a Nonstationary Regime

Cited by 2 publications

References 2 publications

Dependence of Control-Rod Efficiency on the Initial Conditions of Rod Motion

Dependence of Control-Rod Efficiency on the Initial Conditions of Rod Motion

Results of Modeling the Output of the Reactor Bn-800 on the Minimum Controlled Power Level After Completion of 5 Microcampaign

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