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Title: Nuclear reactor cavity floor passive heat removal system

Abstract

A nuclear reactor includes a reactor core disposed in a reactor pressure vessel. A radiological containment contains the nuclear reactor and includes a concrete floor located underneath the nuclear reactor. An ex vessel corium retention system includes flow channels embedded in the concrete floor located underneath the nuclear reactor, an inlet in fluid communication with first ends of the flow channels, and an outlet in fluid communication with second ends of the flow channels. In some embodiments the inlet is in fluid communication with the interior of the radiological containment at a first elevation and the outlet is in fluid communication with the interior of the radiological containment at a second elevation higher than the first elevation. The radiological containment may include a reactor cavity containing a lower portion of the pressure vessel, wherein the concrete floor located underneath the nuclear reactor is the reactor cavity floor.

Inventors:
; ;
Issue Date:
Research Org.:
BWXT mPower, Inc., Charlotte, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1425472
Patent Number(s):
9911514
Application Number:
14/299,016
Assignee:
BWXT mPower, Inc. (Charlotte, 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:  
NE0000583
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 09
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS

Citation Formats

Edwards, Tyler A., Neeley, Gary W., and Inman, James B. Nuclear reactor cavity floor passive heat removal system. United States: N. p., 2018. Web.
Edwards, Tyler A., Neeley, Gary W., & Inman, James B. Nuclear reactor cavity floor passive heat removal system. United States.
Edwards, Tyler A., Neeley, Gary W., and Inman, James B. Tue . "Nuclear reactor cavity floor passive heat removal system". United States. https://www.osti.gov/servlets/purl/1425472.
@article{osti_1425472,
title = {Nuclear reactor cavity floor passive heat removal system},
author = {Edwards, Tyler A. and Neeley, Gary W. and Inman, James B.},
abstractNote = {A nuclear reactor includes a reactor core disposed in a reactor pressure vessel. A radiological containment contains the nuclear reactor and includes a concrete floor located underneath the nuclear reactor. An ex vessel corium retention system includes flow channels embedded in the concrete floor located underneath the nuclear reactor, an inlet in fluid communication with first ends of the flow channels, and an outlet in fluid communication with second ends of the flow channels. In some embodiments the inlet is in fluid communication with the interior of the radiological containment at a first elevation and the outlet is in fluid communication with the interior of the radiological containment at a second elevation higher than the first elevation. The radiological containment may include a reactor cavity containing a lower portion of the pressure vessel, wherein the concrete floor located underneath the nuclear reactor is the reactor cavity floor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {3}
}

Works referenced in this record:

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patent, March 1970


Molten Core Stopping device
patent, September 1971


Nuclear reactors
patent, June 1975


Pressure suppression system for a nuclear reactor
patent, January 1976


Apparatus for controlling molten core debris
patent, July 1977


Nuclear core debris collecting tray
patent, December 1977


Compound water-insoluble glucan and process for the production thereof
patent, February 1978


Device for collecting and cooling reactor-meltdown products
patent, August 1997


Corium Cooling Promoting Apparatus and Containment
patent-application, March 2012


Core Catcher
patent-application, November 2012


Two types of a passive safety containment for a near future BWR with active and passive safety systems
journal, September 2009