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Title: High Energy Absorption Top Nozzle For A Nuclaer Fuel Assembly

Abstract

A high energy absorption top nozzle for a nuclear fuel assembly that employs an elongated upper tubular housing and an elongated lower tubular housing slidable within the upper tubular housing. The upper and lower housings are biased away from each other by a plurality of longitudinally extending springs that are restrained by a longitudinally moveable piston whose upward travel is limited within the upper housing. The energy imparted to the nozzle by a control rod scram is mostly absorbed by the springs and the hydraulic affect of the piston within the nozzle.

Inventors:
 [1];  [2];  [2]
  1. Irmo, SC
  2. Columbia, SC
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
OSTI Identifier:
880038
Patent Number(s):
6738447
Application Number:
10/444469
Assignee:
Westinghouse Electric Company LLC (Pittsburgh, PA)
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:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Sparrow, James A, Aleshin, Yuriy, and Slyeptsov, Aleksey. High Energy Absorption Top Nozzle For A Nuclaer Fuel Assembly. United States: N. p., 2004. Web.
Sparrow, James A, Aleshin, Yuriy, & Slyeptsov, Aleksey. High Energy Absorption Top Nozzle For A Nuclaer Fuel Assembly. United States.
Sparrow, James A, Aleshin, Yuriy, and Slyeptsov, Aleksey. Tue . "High Energy Absorption Top Nozzle For A Nuclaer Fuel Assembly". United States. https://www.osti.gov/servlets/purl/880038.
@article{osti_880038,
title = {High Energy Absorption Top Nozzle For A Nuclaer Fuel Assembly},
author = {Sparrow, James A and Aleshin, Yuriy and Slyeptsov, Aleksey},
abstractNote = {A high energy absorption top nozzle for a nuclear fuel assembly that employs an elongated upper tubular housing and an elongated lower tubular housing slidable within the upper tubular housing. The upper and lower housings are biased away from each other by a plurality of longitudinally extending springs that are restrained by a longitudinally moveable piston whose upward travel is limited within the upper housing. The energy imparted to the nozzle by a control rod scram is mostly absorbed by the springs and the hydraulic affect of the piston within the nozzle.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {5}
}

Patent:

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