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Nuclear fuel element

Patent:

Abstract

The fuel element with circular cross-section for BWR and PWR consists of a core surrounded by a compound jacket container where there is a gap between the core and jacket during operation in the reactor. The core consists of U, Pu, Th compounds and mixtures of these. The compound jacket consists of zircaloy 2 or 4. In order to for example prevent the corrosion of the compound jacket, its inner surface has a metal barrier with smaller neutron absorbers than the jacket material in the form of a zirconium sponge. The zirconium of this metal barrier has impurities of various elements in the order of magnitude of 1000 to 5000 ppm. The oxygen content is in the range of 200 to 1200 ppm and the thickness of the metal barrier is 1-30% of the thickness of the jacket.
Publication Date:
Apr 05, 1979
Product Type:
Patent
Report Number:
DE 2842198; A
Reference Number:
AIX-11-511349; EDB-80-076899
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; BWR TYPE REACTORS; FUEL CANS; PWR TYPE REACTORS; COMPOSITE MATERIALS; FUEL ELEMENTS; NEUTRON ABSORBERS; ZIRCALOY 2; ZIRCALOY 4; ALLOYS; CHROMIUM ADDITIONS; CHROMIUM ALLOYS; IRON ADDITIONS; IRON ALLOYS; MATERIALS; REACTOR COMPONENTS; REACTORS; TIN ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS; ZIRCALOY; ZIRCONIUM ALLOYS; ZIRCONIUM BASE ALLOYS; 210100* - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled; 210200 - Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled
OSTI ID:
5303625
Country of Origin:
Germany
Language:
German
Submitting Site:
INIS
Size:
Pages: 17
Announcement Date:

Patent:

Citation Formats

Armijo, J S, and Coffing, L F. Nuclear fuel element. Germany: N. p., 1979. Web.
Armijo, J S, & Coffing, L F. Nuclear fuel element. Germany.
Armijo, J S, and Coffing, L F. 1979. "Nuclear fuel element." Germany.
@misc{etde_5303625,
title = {Nuclear fuel element}
author = {Armijo, J S, and Coffing, L F}
abstractNote = {The fuel element with circular cross-section for BWR and PWR consists of a core surrounded by a compound jacket container where there is a gap between the core and jacket during operation in the reactor. The core consists of U, Pu, Th compounds and mixtures of these. The compound jacket consists of zircaloy 2 or 4. In order to for example prevent the corrosion of the compound jacket, its inner surface has a metal barrier with smaller neutron absorbers than the jacket material in the form of a zirconium sponge. The zirconium of this metal barrier has impurities of various elements in the order of magnitude of 1000 to 5000 ppm. The oxygen content is in the range of 200 to 1200 ppm and the thickness of the metal barrier is 1-30% of the thickness of the jacket.}
place = {Germany}
year = {1979}
month = {Apr}
}