| 摘要 |
<p>A method of operating a reactor, which can minimize effectively SCC generation and growth in a BWR reactor structural material and reduce a reactor water radioactivity without increasing a dose rate of a main steam system by performing at a proper timing a control for injecting hydrogen while adjusting a reactor water pH to an alkaline side. Specifically, a first invention controls a reactor water pH at room temperature to within a range, 8.5 < Ph ≤ 9, in an initial stage of one operation cycle startup operation and to within a range, 7 < pH ≤ 8.5, thereafter until a shutdown operation, and controls a reactor water hydrogen concentration to within a range of 30 to 100 ppb throughout the above operation cycle.</p> |
