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Influence of iodine chemistry on source term assessment; Influencia de la quimica del yodo en la estimacion del termino fuente

Abstract

The major goal of a phenomenology analysis of containment during a severe accident situation can be spitted into the following ones: to know the containment response to the different loads and to predict accurately the fission product and aerosol behavior. In this report, the main results coming from the study of a hypothetical accident scenario, based on LA-4 experiment of LACE project, are presented. In order to do it, several codes have been coupled: CONTEMPT4/MOD5 (thermohydraulics), NAUA/MOD5 (aerosol physics) and IODE (iodine chemistry). It has been demonstrated the impossibility of assessing with confidence the Source Term if the chemical conduct of some radionuclides is not taken into account. In particular, the influence on the iodine retention efficiency of the sump of variables such as pH has been proven. (Author)12 refs.
Publication Date:
Jul 01, 1991
Product Type:
Technical Report
Report Number:
CIEMAT-672
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; SOURCE TERMS; FISSION PRODUCTS; AEROSOLS; C CODES; N CODES; I CODES; IODINE; PH VALUE; REACTOR ACCIDENTS; COMPUTERIZED SIMULATION
OSTI ID:
20897450
Research Organizations:
Centro de Investigaciones Energeticas Medioambientales y Tecnologicas (CIEMAT), Madrid (Spain)
Country of Origin:
Spain
Language:
Spanish
Other Identifying Numbers:
TRN: ES07B0348
Availability:
Commercial reproduction prohibited; OSTI as DE20897450
Submitting Site:
SPN
Size:
42 pages
Announcement Date:
Aug 10, 2007

Citation Formats

Herranz Puebla, L E, Lopez Diez, I, Rodriguez Maroto, J J, and Martinez Lopez-Alcorocho, A. Influence of iodine chemistry on source term assessment; Influencia de la quimica del yodo en la estimacion del termino fuente. Spain: N. p., 1991. Web.
Herranz Puebla, L E, Lopez Diez, I, Rodriguez Maroto, J J, & Martinez Lopez-Alcorocho, A. Influence of iodine chemistry on source term assessment; Influencia de la quimica del yodo en la estimacion del termino fuente. Spain.
Herranz Puebla, L E, Lopez Diez, I, Rodriguez Maroto, J J, and Martinez Lopez-Alcorocho, A. 1991. "Influence of iodine chemistry on source term assessment; Influencia de la quimica del yodo en la estimacion del termino fuente." Spain.
@misc{etde_20897450,
title = {Influence of iodine chemistry on source term assessment; Influencia de la quimica del yodo en la estimacion del termino fuente}
author = {Herranz Puebla, L E, Lopez Diez, I, Rodriguez Maroto, J J, and Martinez Lopez-Alcorocho, A}
abstractNote = {The major goal of a phenomenology analysis of containment during a severe accident situation can be spitted into the following ones: to know the containment response to the different loads and to predict accurately the fission product and aerosol behavior. In this report, the main results coming from the study of a hypothetical accident scenario, based on LA-4 experiment of LACE project, are presented. In order to do it, several codes have been coupled: CONTEMPT4/MOD5 (thermohydraulics), NAUA/MOD5 (aerosol physics) and IODE (iodine chemistry). It has been demonstrated the impossibility of assessing with confidence the Source Term if the chemical conduct of some radionuclides is not taken into account. In particular, the influence on the iodine retention efficiency of the sump of variables such as pH has been proven. (Author)12 refs.}
place = {Spain}
year = {1991}
month = {Jul}
}