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:
Method of Replacing Subassemblies in Nuclear Reactors
patent, March 1970
- Yevick, John G.; Brill, Edward F.
- US Patent Document 3503849
Molten Core Stopping device
patent, September 1971
- West, John M.; Fletcher III, William D.
- US Patent Document 3607630
Pressure suppression system for a nuclear reactor
patent, January 1976
- Bittermann, Dietmar; Goetzmann, Claus; Hassmann, Klaus
- US Patent Document 3,930,939
Pressure tank for nuclear reactors with concrete enclosure
patent, July 1977
- Kumpf, Hermann
- US Patent Document 4,035,974
Apparatus for controlling molten core debris
patent, July 1977
- Golden, Martin P.; Tilbrook, Roger W.; Heylmun, Neal F.
- US Patent Document 4,036,688
Nuclear reactor fuel containment safety structure
patent, August 1977
- Rosewell, Michael P.
- US Patent Document 4,045,284
Nuclear core debris collecting tray
patent, December 1977
- Broadley, Donald
- US Patent Document 4,062,724
Compound water-insoluble glucan and process for the production thereof
patent, February 1978
- Yokobayashi, Koji; Ikeda, Tadashi; Misaki, Akira
- US Patent Document 4,072,567
Molten core catcher and containment heat removal system
patent, August 1982
- Keating, Stephen J.
- US Patent Document 4,342,621
Arrangement to prevent the molten core of a nuclear reactor from penetrating into the ground
patent, December 1990
- Dumas, Daniel; Hoynant, George
- US Patent Document 4,978,496
Protection system for the basemat reactor containment buildings in nuclear power stations
patent, October 1991
- Turricchia, Arnaldo
- US Patent Document 5,057,271
Device for collecting and cooling reactor-meltdown products
patent, August 1997
- Wistuba, Lothar; Hau, Gerhard
- US Patent Document 5,659,589
Device for retaining a hot melt in particular a core melt-through inside the spreading chamber of a nuclear reactor installation
patent, February 2001
- Hau, Gerhard; Wistuba, Lothar; Hollmann, Josef
- US Patent Document 6,192,097
Corium Cooling Promoting Apparatus and Containment
patent-application, March 2012
- Goda, Hiroshi; Yamagishi, Makoto; Suzuta, Tadahiko
- US Patent Application 13/318588; 20120051485
Core Catcher
patent-application, November 2012
- Kurita, Tomohisa; Tahara, Mika; Komuro, Mitsuo
- US Patent Application 13/470723; 20120300893
Two types of a passive safety containment for a near future BWR with active and passive safety systems
journal, September 2009
- Sato, Takashi; Akinaga, Makoto; Kojima, Yoshihiro
- Nuclear Engineering and Design, Vol. 239, Issue 9, p. 1682-1692