Elemental iodine removal by air-saturated water spray under hypothetical LOCA condition in BWR

Autor:	Kazuichiro Hashimoto, Gunji Nishio, Susumu Kitani, Yasuo Motoki, Mitsuo Naritomi
Rok vydání:	1982
Předmět:	Carbonic acid Nuclear and High Energy Physics Radiochemistry chemistry.chemical_element Iodine Sump (aquarium) Corrosion Partition coefficient chemistry.chemical_compound Washout (aeronautics) Nuclear Energy and Engineering chemistry Deposition (phase transition) Water spray
Zdroj:	Journal of Nuclear Science and Technology. 19:315-325
ISSN:	1881-1248 0022-3131
DOI:	10.3327/jnst.19.315
Popis:	Containment spray tests for elemental iodine vapor removal were conducted under simulated BWR LOCA condition with large-scale JAERI Model Containment. The tests were carried out to determine the behavior of gas phase iodine removal by spray water containing carbonic acid, the mixing effect in the sump pool, and iodine deposition onto the containment wall. In the tests, a half-life of the iodine concentration decrease in gas phase was obtained as 6–12min and an iodine partition coefficient was also obtained as 80–160 by the spray washout under pH range of 5.3–5.9. The effect on the mitigation of pH decrease of spray water caused by the iron corrosion process was discussed from the experiments. Results obtained from the tests were compared with those calculated by a code MIRA-PB.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a6b57bae57e8455936d842c1b68263e https://doi.org/10.3327/jnst.19.315 Zobrazit plný text záznamu