PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel

Graham, Thomas G.

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Title: PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel

Abstract

In conjunction with a pressurized water reactor (PWR) and a pressurizer configured to control pressure in the reactor pressure vessel, a decay heat removal system comprises a pressurized passive condenser, a turbine-driven pump connected to suction water from at least one water source into the reactor pressure vessel; and steam piping configured to deliver steam from the pressurizer to the turbine to operate the pump and to discharge the delivered steam into the pressurized passive condenser. The pump and turbine may be mounted on a common shaft via which the turbine drives the pump. The at least one water source may include a refueling water storage tank (RWST) and/or the pressurized passive condenser. A pressurizer power operated relief valve may control discharge of a portion of the delivered steam bypassing the turbine into the pressurized passive condenser to control pressure in the pressurizer.

Inventors:: Graham, Thomas G.

Issue Date:: Tue Jul 28 00:00:00 EDT 2020

Research Org.:: BWXT mPower, Inc., Charlotte, NC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1735084

Patent Number(s):: 10726961

Application Number:: 15/689,724

Assignee:: BWXT mPower, Inc. (Charlotte, NC)

Patent Classifications (CPCs):: G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

G - PHYSICS G21 - NUCLEAR PHYSICS G21D - NUCLEAR POWER PLANT

Show more

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C1/09 - Pressure regulating arrangements, i.e. pressurisers
G21C15/182 - {comprising powered means, e.g. pumps}
G21C15/185 - {using energy stored in reactor system}
G21C9/012 - by thermal accumulation or by steam condensation, e.g. ice condensers

G - PHYSICS G21 - NUCLEAR PHYSICS G21D - NUCLEAR POWER PLANT
G21D1/00 - Details of nuclear power plant
G21D3/06 - responsive to faults within the plant

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
Y02E30/00 - Energy generation of nuclear origin
Y02E30/30 - Nuclear fission reactors

Show less

DOE Contract Number:: NE0000583

Resource Type:: Patent

Resource Relation:: Patent File Date: 08/29/2017

Country of Publication:: United States

Language:: English

Subject:: 22 GENERAL STUDIES OF NUCLEAR REACTORS; 42 ENGINEERING

Citation Formats


                    Graham, Thomas G. PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel.  United States: N. p., 2020. 
        Web.

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                    Graham, Thomas G. PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel.  United States.

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                    Graham, Thomas G. Tue .  
        "PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel".  United States.  https://www.osti.gov/servlets/purl/1735084.

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@article{osti_1735084,

  title        = {PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel},

  author       = {Graham, Thomas G.},

  abstractNote = {In conjunction with a pressurized water reactor (PWR) and a pressurizer configured to control pressure in the reactor pressure vessel, a decay heat removal system comprises a pressurized passive condenser, a turbine-driven pump connected to suction water from at least one water source into the reactor pressure vessel; and steam piping configured to deliver steam from the pressurizer to the turbine to operate the pump and to discharge the delivered steam into the pressurized passive condenser. The pump and turbine may be mounted on a common shaft via which the turbine drives the pump. The at least one water source may include a refueling water storage tank (RWST) and/or the pressurized passive condenser. A pressurizer power operated relief valve may control discharge of a portion of the delivered steam bypassing the turbine into the pressurized passive condenser to control pressure in the pressurizer.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Jul 28 00:00:00 EDT 2020},

  month        = {Tue Jul 28 00:00:00 EDT 2020}

}

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PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel

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Similar Records

Title: PWR decay heat removal system in which steam from the pressurizer drives a turbine which drives a pump to inject water into the reactor pressure vessel

Abstract

Citation Formats

Emergency cooling system and method patent, January 1994

Low pressure reactor safety systems and methods patent, October 2016

Nuclear power facilities patent, April 1991

Passive core injection system with steam driven jet pump for next generation nuclear reactors journal, June 1999

Small Modular Reactor Safety Systems patent-application, December 2013

Passive emergency water system for water-cooled nuclear reactors patent, March 1999

Reactor Cooling System patent, March 1969

Passive emergency water system for water-cooled nuclear reactors patent, August 1997

Combined Core Makeup Tank And Heat Removal System For A Small Modular Pressurized Water Reactor patent-application, December 2013

Emergency Core Cooling Duct For Emergency Core Cooling Water Injection Of A Nuclear Reactor patent-application, November 2010

Reactor-core isolation cooling system with dedicated generator patent, June 1992

Containment heat removal system patent, April 1992

Passive emergency feedwater system patent, May 2012

Passive containment cooling system patent, September 1991

Submerged Containment Vessel For A Nuclear Reactor patent-application, May 2009

Passive Emergency Feedwater System patent-application, May 2009

Method of operating a nuclear reactor with emergency cooling system economy patent, April 1994

Water cooled nuclear reactors patent, September 1991

System for passively dissipating heat from the interior of a nuclear reactor containment structure patent, December 1997

Safety device protecting a nuclear reactor pressure vessel against overpressure failure patent, May 1996

Apparatus for removing the residual power of a pressurized nuclear reactor core patent, September 1994

Passive containment cooling system patent, January 1994

Passive Safety System of Integral Reactor patent-application, January 2014

Integral PWR with diverse emergency cooling and method of operating same patent, September 2004

Nuclear reactor with makeup water assist from residual heat removal system patent, December 1993

Nuclear reactor patent, January 1990

Heat Removal System and Method for Use with a Nuclear Reactor patent-application, August 2012

Nuclear reactor loss of coolant protection system patent, March 1986

Passive Emergency Feedwater System patent-application, November 2012

Handling pool and safety water reserve for pressurized water-cooled nuclear reactor patent, December 1991

Passive containment system patent, September 1984

Passive nuclear power plant containment system patent, January 1991

Reactor core isolation cooling system patent, December 1992

Full pressure passive emergency core cooling and residual heat removal system for water cooled nuclear reactors patent, April 1992

Pressurized water reactor patent, July 1981

Compact pressurized water nuclear reactor patent, December 2006

Nuclear reactor with emergency cooling water injection device patent, March 1991

Separate Type Safety Injection Tank And Integral Type Reactor Having The Same patent-application, February 2014

Refueling Water Storage Tank (RWST) with Tailored Passive Emergency Core Cooling (ECC) Flow patent-application, September 2014

Passive safety system for a pressurized water nuclear reactor patent, June 1988

Passive shutdown cooling system for nuclear reactors patent, April 1993

Nuclear power facilities patent, February 1992

Passive Emergency Feedwater System patent-application, July 2012

Defense in Depth Safety Paradigm for Nuclear Reactor patent-application, November 2013

Emergency cooling system and method
patent, January 1994

Low pressure reactor safety systems and methods
patent, October 2016

Nuclear power facilities
patent, April 1991

Passive core injection system with steam driven jet pump for next generation nuclear reactors
journal, June 1999

Small Modular Reactor Safety Systems
patent-application, December 2013

Passive emergency water system for water-cooled nuclear reactors
patent, March 1999

Reactor Cooling System
patent, March 1969

Passive emergency water system for water-cooled nuclear reactors
patent, August 1997

Combined Core Makeup Tank And Heat Removal System For A Small Modular Pressurized Water Reactor
patent-application, December 2013

Emergency Core Cooling Duct For Emergency Core Cooling Water Injection Of A Nuclear Reactor
patent-application, November 2010

Reactor-core isolation cooling system with dedicated generator
patent, June 1992

Containment heat removal system
patent, April 1992

Passive emergency feedwater system
patent, May 2012

Passive containment cooling system
patent, September 1991

Submerged Containment Vessel For A Nuclear Reactor
patent-application, May 2009

Passive Emergency Feedwater System
patent-application, May 2009

Method of operating a nuclear reactor with emergency cooling system economy
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Water cooled nuclear reactors
patent, September 1991

System for passively dissipating heat from the interior of a nuclear reactor containment structure
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Safety device protecting a nuclear reactor pressure vessel against overpressure failure
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Apparatus for removing the residual power of a pressurized nuclear reactor core
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Passive Safety System of Integral Reactor
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Integral PWR with diverse emergency cooling and method of operating same
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Nuclear reactor with makeup water assist from residual heat removal system
patent, December 1993

Nuclear reactor
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Heat Removal System and Method for Use with a Nuclear Reactor
patent-application, August 2012

Nuclear reactor loss of coolant protection system
patent, March 1986

Passive Emergency Feedwater System
patent-application, November 2012

Handling pool and safety water reserve for pressurized water-cooled nuclear reactor
patent, December 1991

Passive containment system
patent, September 1984

Passive nuclear power plant containment system
patent, January 1991

Reactor core isolation cooling system
patent, December 1992

Full pressure passive emergency core cooling and residual heat removal system for water cooled nuclear reactors
patent, April 1992

Pressurized water reactor
patent, July 1981

Compact pressurized water nuclear reactor
patent, December 2006

Nuclear reactor with emergency cooling water injection device
patent, March 1991

Separate Type Safety Injection Tank And Integral Type Reactor Having The Same
patent-application, February 2014

Refueling Water Storage Tank (RWST) with Tailored Passive Emergency Core Cooling (ECC) Flow
patent-application, September 2014

Passive safety system for a pressurized water nuclear reactor
patent, June 1988

Passive shutdown cooling system for nuclear reactors
patent, April 1993

Nuclear power facilities
patent, February 1992

Passive Emergency Feedwater System
patent-application, July 2012

Defense in Depth Safety Paradigm for Nuclear Reactor
patent-application, November 2013