Temperature Response of the HTR-10 during the Power Ascension Test

Figure 5

Gas convection model of the HTR-10. (1) Reactor core; (2, 3) flow channel in the bottom reflector; (4) hot helium plenum; (5) top cavity of the core; (6) non-flow region; (7) bottom cavity of the RPV; (8, 9) bottom coolant channels; (10) flow channel in the side reflector; (11, 12) throttle plate; (13) control rod channel; (14) cold helium plenum; (15) small plenum in the bottom reflector; (16) inlet cavity of the RPV; (17) annular space of the RPV; (18) flow channel in the top reflector; (19) leak flow region.