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Title: System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle

Abstract

The invention relates to a nuclear plant in which the power of a nuclear reactor is controlled via demand of a connected electric grid. A naturally circulating nuclear reactor coolant loop is linked to a water/steam loop by means of a steam generator. The water/steam loop consists of an electric power generating unit and a water recirculating and steam control system. The generator is coupled to an external power grid. As power requirements of the grid change, a controller linked to the generator and a three way valve divides steam flow between the expansion turbine and a feedwater heater to boost or retard the power output. Altering the steam flow changes the pressure and temperature in the water/steam system and thus the coolant flow rate. The change in coolant flow allows the reactor core to regulate its reactivity to reach a state of equilibrium to the demand for electric power.

Inventors:
Issue Date:
Research Org.:
University of Chicago, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1524992
Patent Number(s):
10,217,536
Application Number:
14/228,328
Assignee:
U.S. Department of Energy (Washington, DC)
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-03-28
Country of Publication:
United States
Language:
English

Citation Formats

Vilim, Richard B. System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle. United States: N. p., 2019. Web.
Vilim, Richard B. System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle. United States.
Vilim, Richard B. Tue . "System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle". United States. https://www.osti.gov/servlets/purl/1524992.
@article{osti_1524992,
title = {System for the highly autonomous operation of a modular liquid-metal reactor with steam cycle},
author = {Vilim, Richard B.},
abstractNote = {The invention relates to a nuclear plant in which the power of a nuclear reactor is controlled via demand of a connected electric grid. A naturally circulating nuclear reactor coolant loop is linked to a water/steam loop by means of a steam generator. The water/steam loop consists of an electric power generating unit and a water recirculating and steam control system. The generator is coupled to an external power grid. As power requirements of the grid change, a controller linked to the generator and a three way valve divides steam flow between the expansion turbine and a feedwater heater to boost or retard the power output. Altering the steam flow changes the pressure and temperature in the water/steam system and thus the coolant flow rate. The change in coolant flow allows the reactor core to regulate its reactivity to reach a state of equilibrium to the demand for electric power.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {2}
}

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Works referenced in this record:

Methods of reactor system pressure control by reactor core power modulation
patent, March 2001


Nuclear power plant
patent, November 1989


Feedwater control over full power range for pressurized water reactor steam generators
patent, February 2000


Method and apparatus for controlling a steam turbine
patent, February 1977


Apparatus and method for thermal power generation
patent, May 1978


Electric power generating plant
patent, June 1988


Power generation
patent, January 1984