Three Design Basis Accidents’ Analysis on the HTR-10GT

Table 4

Accident sequence of an equilibrium core induced by station blackout.

Events	HTR-10GT	HTR-10
Station blackout occurs, the helium blower and turbine shut down	0.0 s	0.0 s
Absolute sliding rate of the turbine power ⩾ 28%/min	20.0 s	20.0 s
Absolute sliding rate of system pressure 0.031 MPa/min	66.9 s	36.0 s
Protection system takes actions to scram	67.9 s	37.0 s
Time at which fuel temperature reached a peak	68.0 s	0.0 s
Peak fuel temperature	989.0	944°C
Time at which system pressure reached a peak	15.2 s	78.7 s
Peak system pressure	1.6 MPa	3.18 MPa