Published December 20, 1986 | Version v1
Patent Metadata-only

Fuel pin

Creators

Description

Purpose: To eliminate the risk of failure propagation in fuels upon rupture of a fuel can, by suppressing FP gas releasing rate in the gas plenum of a fuel pin. Constitution: A pressure-reducing element is disposed within a metal fuel can of a fuel pin for use in FBR reactors. The pressure-reducing element comprises a disc having an opening at the center and a fine tube connected to the opening, and the element is secured to a position at the boundary between the gas plenum in the fuel can and the charging portion of fuel pellets. If the melt destruction of the fuel pellets should occur, discharge of FP gases in the gas plenum is suppressed by the fine tube and the gas release time is controlled by the length of the fine tube. (Seki, T.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl. G21C3/16.
IPC
Int. Cl. G21C3/16.
Patent number
JP patent document 61-290385/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
18090926
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
DEPRESSURIZATION; FISSION PRODUCTS; FUEL CANS; FUEL ELEMENT FAILURE; FUEL PINS; FUEL-CLADDING INTERACTIONS; LMFBR TYPE REACTORS; TUBES
Descriptors DEC
ACCIDENTS; BREEDER REACTORS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; FUEL ELEMENTS; ISOTOPES; LIQUID METAL COOLED REACTORS; MATERIALS; RADIOACTIVE MATERIALS; REACTOR ACCIDENTS; REACTOR COMPONENTS; REACTORS

Optional Information

Secondary number(s)
JP patent application 60-130910.