Induced nuclear reactions: processes – systems – and elements – With control of reactor – Power output control
Reexamination Certificate
2011-08-30
2011-08-30
Palabrica, Rick (Department: 3663)
Induced nuclear reactions: processes, systems, and elements
With control of reactor
Power output control
C376S298000, C376S207000, C376S361000
Reexamination Certificate
active
08009788
ABSTRACT:
A boiling water reactor includes a reactor pressure vessel; a steam pipe for transporting steam generated in the reactor pressure vessel out from a steam dome positioned at an upper part of the reactor pressure vessel; a high pressure turbine connected to the steam pipe and driven by the steam; a feedwater heater which heats feedwater supplied to the reactor pressure vessel using bleed steam flowing from the high pressure turbine to the feedwater heater; a bleeding valve which adjusts a flow rate of the bleed steam; and a pressure sensor provided in a main steam line including the steam dome and the steam pipe. The boiling water reactor further includes a monitor and control system which controls an opening degree of the bleeding valve based on a magnitude of fluctuating pressure in the main steam line that is detected by the pressure sensor.
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Fujimoto Kiyoshi
Ohtsuka Masaya
Tsubaki Masaaki
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Palabrica Rick
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