Feedwater temperature control methods and systems
A system for controlling the power level of a natural circulation boiling water nuclear reactor (NCBWR) is disclosed. The system, in accordance with an example embodiment of the present invention, may include a controller configured to control a power output level of the NCBWR by controlling a heating subsystem to adjust a temperature of feedwater flowing into an annulus of the NCBWR. The heating subsystem may include a steam diversion line configured to receive steam generated by a core of the NCBWR and a steam bypass valve configured to receive commands from the controller to control a flow of the steam in the steam diversion line, wherein the steam received by the steam diversion line has not passed through a turbine. Additional embodiments of the invention may include a feedwater bypass valve for controlling an amount of flow of the feedwater through a heater bypass line to the annulus.
- Research Organization:
- GE-Hitachi Nuclear Energy Americas LLC, Wilmington, NC (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC07-07ID14778
- Assignee:
- GE-Hitachi Nuclear Energy Americas LLC (Wilmington, NC)
- Patent Number(s):
- 8,705,682
- Application Number:
- 11/777,377
- OSTI ID:
- 1129378
- Resource Relation:
- Patent File Date: 2007 Jul 13
- Country of Publication:
- United States
- Language:
- English
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