Design Scheme of Special Safety System for Supercritical-Water-Cooled Reactor

This paper gives a brief description of the design requirement and design principle of Supercritical-Water-Cooled Reactor（SCWR） Nuclear Power Plant safety system,particularly describes the function and the system design scheme of the automatic depressing system（ADS）,high pressure feedwater tank（RMT）,passive residual heat removal system（ICS）,passive containment cooling system（PCCS） and gravity driving core cooling system（GDCS）.The operation of the safety system is analyzed after loss of feedwater flowrate accident,to verify the validity of the SCWR safety system described above.