Abstract
Nuclear power plant accidents may be followed by a release of fission products into the environment. This release is dependent on several phenomena, such as chemistry, pressure, type of the accident etc. The aim of this paper is to assess the impact of the chemical form of iodine on the fission product release into the environment.
Highlights
IntroductionNuclear power plant accidents in past decades revealed the need of proper definition and calculation of fission product mass entraining the environment
Fission product behaviour and its simulation recently become more important
This paper is focused on assessment of the impact of the chemical form of iodine release, which is well known for its extensive range of chemical compounds and reactions within the containment
Summary
Nuclear power plant accidents in past decades revealed the need of proper definition and calculation of fission product mass entraining the environment. To successfully calculate such phenomena, one has to specify the in-containment source correctly. Several different approaches existing up to date vary in the mass, the chemical form or time characteristics. This paper is focused on assessment of the impact of the chemical form of iodine release, which is well known for its extensive range of chemical compounds and reactions within the containment. A fundamental opinion on the complexity of iodine chemistry in the containment during loss-of-coolant accidents can be obtained from Fig. 1. Codes and brief overview on existing approaches are presented further
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