Research Article

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

Figure 2

THERMIX model of the HTR-10GT core. 1, core; 2, 14, and 31, side reflectors without channels; 3, side reflectors within control rod channels; 4, side reflectors within cooling channels; 5, carbon brick; 6, reactor pressure vessel; 7, core shell; 8, top part of the bottom reflector within flow channels; 9, lower part of the bottom reflector within flow channels; 10 and 11, steel support in the core bottom; 12, annulus passage of cold helium at the core bottom; 13, leakage inside the metal internals; 15, concrete; 16, side boundary of flow; 17, thermal insulation; 18, top helium cavity in the RPV; 19, core inlet cavity; 20, flow passages around the core bottom; 21, bottom helium cavity in RPV; 23, helium gap between the RPV and the core shell; 24, side air cavity outside the RPV; 25, outlet cavity at the core bottom; 26, bottom air cavity outside the RPV; 27, side part of the reactor cavity; 28, cavity inside the bottom reflectors; 29, inlet throttle of the refueling pipe; 30, outlet throttle of control rod channels; 35, bottom boundary of flow; 36, top air cavity outside the RPV; 37, air cavity in the top of the reactor cavity; 38, side helium gap inside the core shell; 39, cavity cooling system; 40, helium inlet channel in the core shell; 41, annular flow passage inside the core shell; 42, air gap outside the thermal insulation of the reactor cavity; 43, helium cavity in the top reflectors; 44, helium passage in the top reflectors.