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Title: The influence of environment on release behavior and chemical forms of fission products released under LWR (light water reactor) accident conditions

Abstract

The objective of this paper is to summerize the release behavior of fission products I, Cs, Rb, Te, Sb, Mo, and Ru which has been observed in 28 fission product release tests, 16 simulant tests, and 19 control tests at ORNL. Emphasis is given to the influence of environment on the forms and behavior. The fission product release tests were conducted with highly irradiated LWR fuel segments which were tested in the temperature range 775 to 2300/sup 0/K under three different atmospheres - PH, S-H-H, and DA. The hydrogen in S-H-H was produced by the reaction of steam with the Zircaloy cladding of the fuel rod segments. The hydrogen concentration depended on rate of steam flow supplied and the temperature of the specimen. For most of these tests, the concentration varied from less than 1% to pure hydrogen. In one of the most recent tests (VI-1), the Zircaloy cladding was completely oxidized during the test and for the latter part of the test the hydrogen pressure was negligible (Osborne, 1986). The three different atmospheres were also used in the control and simulant tests.

Authors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6594324
Report Number(s):
CONF-870437-1
ON: DE87006207
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: Workshop on chemical reactivity of oxide fuel and fission product release, Gloucestershire, UK, 6 Apr 1987; Other Information: Paper copy only, copy does not permit microfiche production
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; ANTIMONY; FISSION PRODUCTS; RADIOACTIVE EFFLUENTS; BWR TYPE REACTORS; REACTOR ACCIDENTS; CESIUM; IODINE; FISSION PRODUCT RELEASE; MOLYBDENUM; PWR TYPE REACTORS; RUBIDIUM; RUTHENIUM; TELLURIUM; AIR; ENVIRONMENTAL IMPACTS; FUEL RODS; HELIUM; HYDROGEN; STEAM; ACCIDENTS; ALKALI METALS; ELEMENTS; FLUIDS; FUEL ELEMENTS; GASES; HALOGENS; ISOTOPES; MATERIALS; METALS; NONMETALS; PLATINUM METALS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; RARE GASES; REACTOR COMPONENTS; REACTORS; SEMIMETALS; TRANSITION ELEMENTS; WASTES; WATER COOLED REACTORS; WATER MODERATED REACTORS; 220900* - Nuclear Reactor Technology- Reactor Safety; 220502 - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents; 210100 - Power Reactors, Nonbreeding, Light-Water Moderated, Boiling Water Cooled; 210200 - Power Reactors, Nonbreeding, Light-Water Moderated, Nonboiling Water Cooled

Citation Formats

Collins, J L, Osborne, M F, and Lorenz, R A. The influence of environment on release behavior and chemical forms of fission products released under LWR (light water reactor) accident conditions. United States: N. p., 1987. Web.
Collins, J L, Osborne, M F, & Lorenz, R A. The influence of environment on release behavior and chemical forms of fission products released under LWR (light water reactor) accident conditions. United States.
Collins, J L, Osborne, M F, and Lorenz, R A. 1987. "The influence of environment on release behavior and chemical forms of fission products released under LWR (light water reactor) accident conditions". United States.
@article{osti_6594324,
title = {The influence of environment on release behavior and chemical forms of fission products released under LWR (light water reactor) accident conditions},
author = {Collins, J L and Osborne, M F and Lorenz, R A},
abstractNote = {The objective of this paper is to summerize the release behavior of fission products I, Cs, Rb, Te, Sb, Mo, and Ru which has been observed in 28 fission product release tests, 16 simulant tests, and 19 control tests at ORNL. Emphasis is given to the influence of environment on the forms and behavior. The fission product release tests were conducted with highly irradiated LWR fuel segments which were tested in the temperature range 775 to 2300/sup 0/K under three different atmospheres - PH, S-H-H, and DA. The hydrogen in S-H-H was produced by the reaction of steam with the Zircaloy cladding of the fuel rod segments. The hydrogen concentration depended on rate of steam flow supplied and the temperature of the specimen. For most of these tests, the concentration varied from less than 1% to pure hydrogen. In one of the most recent tests (VI-1), the Zircaloy cladding was completely oxidized during the test and for the latter part of the test the hydrogen pressure was negligible (Osborne, 1986). The three different atmospheres were also used in the control and simulant tests.},
doi = {},
url = {https://www.osti.gov/biblio/6594324}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}

Conference:
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