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- W2389779534 abstract "In order to carry out model simplification and controller synthesis, the dynamic responses of a nonlinear model of 200MW nuclear heating reactor (NHR) were analyzed under different conditions. The responses of the reactor power and temperature of the coolant in the top tank were studied under those conditions when reactivity and secondary flow rate changed respectively. Some conclusions can be obtained from the simulation results: one group delayed neutrons model is accurate enough for control system analysis; the variation of the heat transfer coefficient between the coolant and the fuel caused by the natural circulation can not be neglected during the whole automatic performance range, while the variation of the heat transfer coefficient of the primary heat exchanger (PHE) shell side caused by the natural circulation can be ignored; the thermal inertia of the coolant in the tubes of PHE can be ignored. Neglecting inlets and outlets of the core and PHE, considering the chimney and the descending flow pipe as first order lag nodes will affect the dynamic process a lot when step secondary flow rate is introduced, but its influence on the step responses of reactivity is small." @default.
- W2389779534 created "2016-06-24" @default.
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- W2389779534 date "1999-01-01" @default.
- W2389779534 modified "2023-09-28" @default.
- W2389779534 title "Dynamic analysis of nonlinear model of 200MW nuclear heating reactor" @default.
- W2389779534 hasPublicationYear "1999" @default.
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