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Title: Chimney for enhancing flow of coolant water in natural circulation boiling water reactor

Abstract

A chimney which can be reconfigured or removed during refueling to allow vertical removal of the fuel assemblies. The chimney is designed to be collapsed or dismantled. Collapse or dismantlement of the chimney reduces the volume required for chimney storage during the refueling operation. Alternatively, the chimney has movable parts which allow reconfiguration of its structure. In a first configuration suitable for normal reactor operation, the chimney is radially constricted such that the chimney obstructs vertical removal of the fuel assemblies. In a second configuration suitable for refueling or maintenance of the fuel core, the parts of the chimney which obstruct access to the fuel assemblies are moved radially outward to positions whereat access to the fuel assemblies is not obstructed.

Inventors:
 [1];  [2]
  1. Oosterbeek, NL
  2. San Jose, CA
Issue Date:
Research Org.:
General Electric Co., Boston, MA (United States)
OSTI Identifier:
872084
Patent Number(s):
5857006
Application Number:
08/347621
Assignee:
General Electric Company (San Jose, CA)
Patent Classifications (CPCs):
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
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
AC03-90SF18494
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
chimney; enhancing; flow; coolant; water; natural; circulation; boiling; reactor; reconfigured; removed; refueling; allow; vertical; removal; fuel; assemblies; designed; collapsed; dismantled; collapse; dismantlement; reduces; volume; required; storage; operation; alternatively; movable; reconfiguration; structure; configuration; suitable; normal; radially; constricted; obstructs; maintenance; core; obstruct; access; moved; outward; positions; whereat; obstructed; coolant water; water reactor; fuel assemblies; radially outward; fuel core; natural circulation; boiling water; reactor operation; normal reactor; circulation boiling; /376/

Citation Formats

Oosterkamp, Willem Jan, and Marquino, Wayne. Chimney for enhancing flow of coolant water in natural circulation boiling water reactor. United States: N. p., 1999. Web.
Oosterkamp, Willem Jan, & Marquino, Wayne. Chimney for enhancing flow of coolant water in natural circulation boiling water reactor. United States.
Oosterkamp, Willem Jan, and Marquino, Wayne. Tue . "Chimney for enhancing flow of coolant water in natural circulation boiling water reactor". United States. https://www.osti.gov/servlets/purl/872084.
@article{osti_872084,
title = {Chimney for enhancing flow of coolant water in natural circulation boiling water reactor},
author = {Oosterkamp, Willem Jan and Marquino, Wayne},
abstractNote = {A chimney which can be reconfigured or removed during refueling to allow vertical removal of the fuel assemblies. The chimney is designed to be collapsed or dismantled. Collapse or dismantlement of the chimney reduces the volume required for chimney storage during the refueling operation. Alternatively, the chimney has movable parts which allow reconfiguration of its structure. In a first configuration suitable for normal reactor operation, the chimney is radially constricted such that the chimney obstructs vertical removal of the fuel assemblies. In a second configuration suitable for refueling or maintenance of the fuel core, the parts of the chimney which obstruct access to the fuel assemblies are moved radially outward to positions whereat access to the fuel assemblies is not obstructed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

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