skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nuclear reactor fuel element having improved heat transfer

Abstract

A nuclear reactor fuel element having improved heat transfer between fuel material and cladding is described. The element consists of an outer cladding tube divided into an upper fuel section containing a central core of fissionable or mixed fissionable and fertile fuel material, slightly smaller in diameter than the inner surface of the cladding tube and a small lower accumulator section, the cladding tube being which is filled with a low molecular weight gas to transfer heat from fuel material to cladding during irradiation. A plurality of essentially vertical grooves in the fuel section extend downward and communicate with the accumulator section. The radial depth of the grooves is sufficient to provide a thermal gradient between the hot fuel surface and the relatively cooler cladding surface to allow thermal segregation to take place between the low molecular weight heat transfer gas and high molecular weight fission product gases produced by the fuel material during irradiation.

Inventors:
; ; ;
Publication Date:
OSTI Identifier:
6469319
Application Number:
ON: DE83006852
Assignee:
ERA-08-017901; EDB-83-049725
DOE Contract Number:  
AC06-76RL01830
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FUEL RODS; FUEL CANS; FUEL PELLETS; HEAT TRANSFER; ENERGY TRANSFER; FUEL ELEMENTS; PELLETS; REACTOR COMPONENTS; 220300* - Nuclear Reactor Technology- Fuel Elements

Citation Formats

Garnier, J.E., Begej, S., Williford, R.E., and Christensen, J.A. Nuclear reactor fuel element having improved heat transfer. United States: N. p., 1982. Web.
Garnier, J.E., Begej, S., Williford, R.E., & Christensen, J.A. Nuclear reactor fuel element having improved heat transfer. United States.
Garnier, J.E., Begej, S., Williford, R.E., and Christensen, J.A. Wed . "Nuclear reactor fuel element having improved heat transfer". United States.
@article{osti_6469319,
title = {Nuclear reactor fuel element having improved heat transfer},
author = {Garnier, J.E. and Begej, S. and Williford, R.E. and Christensen, J.A.},
abstractNote = {A nuclear reactor fuel element having improved heat transfer between fuel material and cladding is described. The element consists of an outer cladding tube divided into an upper fuel section containing a central core of fissionable or mixed fissionable and fertile fuel material, slightly smaller in diameter than the inner surface of the cladding tube and a small lower accumulator section, the cladding tube being which is filled with a low molecular weight gas to transfer heat from fuel material to cladding during irradiation. A plurality of essentially vertical grooves in the fuel section extend downward and communicate with the accumulator section. The radial depth of the grooves is sufficient to provide a thermal gradient between the hot fuel surface and the relatively cooler cladding surface to allow thermal segregation to take place between the low molecular weight heat transfer gas and high molecular weight fission product gases produced by the fuel material during irradiation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Mar 03 00:00:00 EST 1982},
month = {Wed Mar 03 00:00:00 EST 1982}
}