Feedwater temperature control methods and systems
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- GE-Hitachi Nuclear Energy Americas LLC, Wilmington, NC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1129378
- Patent Number(s):
- 8705682
- Application Number:
- 11/777,377
- Assignee:
- GE-Hitachi Nuclear Energy Americas LLC (Wilmington, NC)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- FC07-07ID14778
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2007 Jul 13
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
Citation Formats
Moen, Stephan Craig, Noonan, Jack Patrick, and Saha, Pradip. Feedwater temperature control methods and systems. United States: N. p., 2014.
Web.
Moen, Stephan Craig, Noonan, Jack Patrick, & Saha, Pradip. Feedwater temperature control methods and systems. United States.
Moen, Stephan Craig, Noonan, Jack Patrick, and Saha, Pradip. Tue .
"Feedwater temperature control methods and systems". United States. https://www.osti.gov/servlets/purl/1129378.
@article{osti_1129378,
title = {Feedwater temperature control methods and systems},
author = {Moen, Stephan Craig and Noonan, Jack Patrick and Saha, Pradip},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 22 00:00:00 EDT 2014},
month = {Tue Apr 22 00:00:00 EDT 2014}
}
Works referenced in this record:
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Operating method for nuclear power plants
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