Spring packed particle bed fuel element

Details Spring packed particle bed fuel element Spring packed particle bed fuel element

1988-06-27

1990-03-27

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376381, G21C 330

Patent

active

049118811

ABSTRACT:
A particle bed fuel element designed to accommodate expansion and contraction within the particle fuel bed. Porous inner and outer frits connected together by an end cap at a first end and radially guided by a shoulder at a second end receive fuel particles in the annulus formed therebetween. Compressive devices at each end of the frits and within the fuel bed maintain packing force to prevent looseness during contraction and allow expansion without excessive pressure being placed on the fuel particles. Pairs of beleville springs, wave springs, and pressurized thin-walled metal donuts may be used as the compressive devices.

REFERENCES:
patent: 3406090 (1968-10-01), Dunn
patent: 3671393 (1972-06-01), Williams
patent: 3679545 (1972-07-01), Leirvike
patent: 4699757 (1987-10-01), Cloue

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