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Nuclear aerosol behaviour in LMFBR. Comparison of computer modelling with aerosol experiments

Abstract

For the purpose of studying the behaviour of the concentration of aerosols confined in a vessel, various models have been developed, especially in the United States: HAA 3B, HAARM 2 and HAARM 3 - in the Federal Republic of Germany: PARDISEKO 3 and PARDISEKO 3 B - in Japan: ABC 2 and ABC 3 - in the United Kingdom: AEROSIM and in the Netherlands: ETHERDEMO and MADCA. These codes were validated on the basis of tests conducted in vessels whose volumes varied between 0.022 and 850 m{sup 3}. The aerosols studied differed in nature (sodium oxide, fuel oxide, sodium oxide-fuel oxide, gold) and method of production (sodium pool fires, sodium spray fires, arc vaporization, exploding wire) in various atmospheres air, air with variable amounts of oxygen, and nitrogen. This comparison between calculation and experimental results reveals that difficulties still exist, especially as to the selection of the values to be given to some input parameters of the codes (physical data of experimental origin, in particular, the aerosol source function and the characteristics of the size distribution of the emitted particles). Furthermore, the importance of thermophoresis and convection currents has been proved: including the soaring effect in the ABC 3 code  More>>
Authors:
Fermandjian, J [1] 
  1. DSN/Centre de Fontenay-aux-Roses, Fontenay-aux-Roses (France)
Publication Date:
Mar 01, 1979
Product Type:
Conference
Report Number:
IWGFR-28
Resource Relation:
Conference: IAEA-IWGFR specialists' meeting on sodium fires and prevention, Cadarache (France), 20-24 Nov 1987; Other Information: 18 refs, 34 figs, 9 tabs; PBD: Mar 1979; Related Information: In: Specialists' meeting on sodium fires and prevention. Summary report, 259 pages.
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AEROSOLS; COMBUSTION PRODUCTS; COMPARATIVE EVALUATIONS; COMPUTER CODES; CONVECTION; EXPERIMENTAL DATA; FIRES; LMFBR TYPE REACTORS; SODIUM; SODIUM OXIDES; THERMOPHORESIS; VALIDATION
OSTI ID:
20236813
Research Organizations:
International Atomic Energy Agency, International Working Group on Fast Reactors, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA0200871011378
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 211-239
Announcement Date:
Apr 04, 2002

Citation Formats

Fermandjian, J. Nuclear aerosol behaviour in LMFBR. Comparison of computer modelling with aerosol experiments. IAEA: N. p., 1979. Web.
Fermandjian, J. Nuclear aerosol behaviour in LMFBR. Comparison of computer modelling with aerosol experiments. IAEA.
Fermandjian, J. 1979. "Nuclear aerosol behaviour in LMFBR. Comparison of computer modelling with aerosol experiments." IAEA.
@misc{etde_20236813,
title = {Nuclear aerosol behaviour in LMFBR. Comparison of computer modelling with aerosol experiments}
author = {Fermandjian, J}
abstractNote = {For the purpose of studying the behaviour of the concentration of aerosols confined in a vessel, various models have been developed, especially in the United States: HAA 3B, HAARM 2 and HAARM 3 - in the Federal Republic of Germany: PARDISEKO 3 and PARDISEKO 3 B - in Japan: ABC 2 and ABC 3 - in the United Kingdom: AEROSIM and in the Netherlands: ETHERDEMO and MADCA. These codes were validated on the basis of tests conducted in vessels whose volumes varied between 0.022 and 850 m{sup 3}. The aerosols studied differed in nature (sodium oxide, fuel oxide, sodium oxide-fuel oxide, gold) and method of production (sodium pool fires, sodium spray fires, arc vaporization, exploding wire) in various atmospheres air, air with variable amounts of oxygen, and nitrogen. This comparison between calculation and experimental results reveals that difficulties still exist, especially as to the selection of the values to be given to some input parameters of the codes (physical data of experimental origin, in particular, the aerosol source function and the characteristics of the size distribution of the emitted particles). Furthermore, the importance of thermophoresis and convection currents has been proved: including the soaring effect in the ABC 3 code enables to fit the experiment. (author)}
place = {IAEA}
year = {1979}
month = {Mar}
}