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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 is disclosed. 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 whereas access to the fuel assemblies is not obstructed. 11 figs.

Inventors:
;
Issue Date:
Research Org.:
General Electric Co., Boston, MA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321314
Patent Number(s):
5857006
Application Number:
PAN: 8-347,621; TRN: 99:003338
Assignee:
General Electric Co., San Jose, CA (United States)
DOE Contract Number:  
AC03-90SF18494
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 5 Jan 1999
Country of Publication:
United States
Language:
English
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; REACTOR FUELING; DESIGN; NATURAL CONVECTION; PRIMARY COOLANT CIRCUITS; AUGMENTATION; MECHANICAL STRUCTURES

Citation Formats

Oosterkamp, W J, and Marquino, W. Chimney for enhancing flow of coolant water in natural circulation boiling water reactor. United States: N. p., 1999. Web.
Oosterkamp, W J, & Marquino, W. Chimney for enhancing flow of coolant water in natural circulation boiling water reactor. United States.
Oosterkamp, W J, and Marquino, W. Tue . "Chimney for enhancing flow of coolant water in natural circulation boiling water reactor". United States.
@article{osti_321314,
title = {Chimney for enhancing flow of coolant water in natural circulation boiling water reactor},
author = {Oosterkamp, W J and Marquino, W},
abstractNote = {A chimney which can be reconfigured or removed during refueling to allow vertical removal of the fuel assemblies is disclosed. 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 whereas access to the fuel assemblies is not obstructed. 11 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}