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NKS Programme Area:
NKS-B
Research Area:
Emergency preparedness
Report Number:
NORD 1990:45
Report Title:
Aerosol transport in servere reactor accidents
Activity Acronym:
AKTI-160
Authors:
P. Fynbo, H. Haggblom, J. Jokiniemi
Abstract:
Aerosol behaviour in the reactor containment was studied
in the case of severe reactor accidents. The study was
performed in a Nordic group during the years 1985 to
1988. Computer codes with different aerosol models were
used for calculation of fission product transport and the
results are compared. Experimental results from LACE,
DEMONA and Marviken-V are compared with the calculations.
The theory of aerosol nucleation and its influence on the
fission product transport is discussed. The behaviour of
hygroscopic aerosols is studied. The pool scrubbing
models in the codes SPARC and SUPRA are reviewed and some
calculational results are reported. The present status of
knowledge in this field is assessed on the background of
an international rewiew.