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Tests on the release of fission and activation products during core meltdown

Abstract

The first available results are related to tests in which the release of the main components of the core melt, namely the steel, zircaloy and uranium components, was determined using ThO/sub 2/ crucibles. The release products are dispersed onto the pipe walls of the transport system and the measuring filters which were installed at about 1 m distance from the melt crucibles. Of these, only the precipitates on the filters have been analyzed so far. In the tests under air, the release was clearly dependent on the maximum temperature reached. The release values for Mo and Mn were the highest with 5-10%; uranium with 0.1% on the other hand, was the lowest. In a steam atmosphere over the melt, the analysis of the filter precipitates for all elements gave considerably lower values than with the tests in air.
Publication Date:
Jan 01, 1976
Product Type:
Conference
Report Number:
AED-Conf-76-167-009; CONF-7606105-1
Reference Number:
AIX-07-263021; EDB-77-049681
Resource Relation:
Conference: Specialist's meeting on fission product release in reactor accidents, Karlsruhe, F.R. Germany, 1 Jun 1976; Other Information: 5 figs.; 1 tab.; 5 refs
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; FISSION PRODUCT RELEASE; MELTDOWN; REACTOR SAFETY; MOCKUP; ACCIDENTS; REACTOR ACCIDENTS; SAFETY; STRUCTURAL MODELS; 220900* - Nuclear Reactor Technology- Reactor Safety
OSTI ID:
7126807
Research Organizations:
Kernforschungszentrum Karlsruhe (Germany, F.R.). Inst. fuer Radiochemie
Country of Origin:
Germany
Language:
German
Availability:
TIC
Submitting Site:
INIS
Size:
Pages: 8
Announcement Date:

Citation Formats

Albrecht, H, Krause, W, and Wild, H. Tests on the release of fission and activation products during core meltdown. Germany: N. p., 1976. Web.
Albrecht, H, Krause, W, & Wild, H. Tests on the release of fission and activation products during core meltdown. Germany.
Albrecht, H, Krause, W, and Wild, H. 1976. "Tests on the release of fission and activation products during core meltdown." Germany.
@misc{etde_7126807,
title = {Tests on the release of fission and activation products during core meltdown}
author = {Albrecht, H, Krause, W, and Wild, H}
abstractNote = {The first available results are related to tests in which the release of the main components of the core melt, namely the steel, zircaloy and uranium components, was determined using ThO/sub 2/ crucibles. The release products are dispersed onto the pipe walls of the transport system and the measuring filters which were installed at about 1 m distance from the melt crucibles. Of these, only the precipitates on the filters have been analyzed so far. In the tests under air, the release was clearly dependent on the maximum temperature reached. The release values for Mo and Mn were the highest with 5-10%; uranium with 0.1% on the other hand, was the lowest. In a steam atmosphere over the melt, the analysis of the filter precipitates for all elements gave considerably lower values than with the tests in air.}
place = {Germany}
year = {1976}
month = {Jan}
}