Published March 23, 1976 | Version v1
Patent Open

Method and equipment for detecting defective nuclear fuel rods

Creators

Description

Nuclear fuel rod ends of water-cooled reactor fuel rods are heated in the region of the fission gas plenums and/or in the region of the upper or lower ends of the fuel columns. The moisture present in the case of damage to the fuel rods' casings evaporates and is partly condensed at the end caps. In the case of a fuel rod completely filled with water, steam bubbles are generated. Both indications of casing leakage or damage are ascertained by ultrasonic reflection measurements and/or measurement of a temperature-vs-time curve, obtained at the end cap

Availability note (English)

MF available from INIS under the Report Number.

Files

7269101.pdf

Files (311.9 kB)

Name Size Download all
md5:b762ae32b990490baebfcd9cab3f655b
311.9 kB Preview Download

Additional details

Additional titles

Augmented title (English)
Patent; PWR

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl.G01N29/00;G01M3/04.
IPC
Int. Cl.G01N29/00;G01M3/04.
Patent number
US patent document 3,945,245

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7269101
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
BUBBLES; FAILED ELEMENT MONITORS; PWR TYPE REACTORS; SPECIFICATIONS; STEAM; ULTRASONIC WAVES
Descriptors DEC
REACTORS; SOUND WAVES; WATER COOLED REACTORS; WATER MODERATED REACTORS