Reactor Dynamic Analysis Due to Reactivity of The RSG-GAS at One Line cooling Mode

Abstract:

In The frame of minimizing the operation-cost, operation mode using one line cooling system is being evaluated. Maximum reactor power has been determined and steady state and LOFA transient analysis have also been done.

To complete those analysis, the reactivity analysis was done by means of a core dynamic and thermal hydraulic code, PARET-ANL. Accident simulation was done by a ramp reactivity accident due to control rod withdrawal. Reactivity analysis was carried out at two power range i.e. low and high power level, by imposing one line mode reactor protection limits. The results show that technically, the RSG-GAS can be operated safely using one line mode.

Keywords: one line cooling system, ramp reactivity, safety criteria, PARET-ANL

Endiah Puji Hastuti

Pusat Pengembangan Teknologi Reaktor Riset-Batan