| 摘要 |
PROBLEM TO BE SOLVED: To improve economy and reduce heat exhaust rate by small-sizing a turbine system and raising heat efficiency. SOLUTION: The reactor comprises a reactor vessel 31 attaching an inlet header 29 and an outlet header 30 at both openings of a shell 28, a multitude of primary pipes 35 supported in the reactor vessel 31 by core support plates 32 and 33, fuel assemblies 36 loaded in the primary pipes 35, control guide tubes 42 and control rods 43 provided in the direction at right angles to the primary pipes 35, a coolant secondary inlet nozzle 38 and an outlet nozzle 39 attached to the shell 28, a water supply nozzle 40 attached to the inlet header 29 and a main steam nozzle 41 attached to the outlet header 30. Supercritical pressure water having flow in the reactor vessel 31 from the water supply nozzle 40 is heated after passing through the primary pipe 35 and the heated steam flows out of the main steam nozzle 41.
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