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

Table 3

Accident sequence of an initial core induced by station blackout.

Events	HTR-10GT	HTR-10
Station blackout occurs, helium blower and turbine shut down	0.0 s	0.0 s
Absolute sliding rate of the turbine power ⩾ 28%/min	20.0	20.0
Absolute sliding rate of the system pressure ⩾ 0.031 MPa/min	38.2 s	35.8 s
Protection system takes actions to scram	39.2 s	36.8 s
Time at which fuel temperature reaches a peak	31.2 s	0.0 s
Peak fuel temperature	1066°C	1033°C
Time at which system pressure reaches a peak	13.2 s	78.8 s
Peak system pressure	1.6 Mpa	3.18 MPa