Primary circuit chemistry of fission products (CHEMPC): CHEMPC summary report

Teemu Kärkelä, Ari Auvinen, Riitta Zilliacus, Jussi Lyyränen, Jouni Pyykönen, Unto Tapper, Tapani Raunio, Tommi Kekki, Tuula Kajolinna, Leif Kåll, Jorma Jokiniemi

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional


This report summarizes the activities performed in CHEMPC project. The aim of the project was to study transport and chemistry of fission products in primary circuit as well as in containment during a hypothetical severe accident. Experimental studies on fission product chemistry in primary circuit were conducted at VTT and at IRSN. Fission product transport in SGTR sequences was experimentally studied in international ARTIST program at PSI. Experiments on radiolytic oxidation of iodine in containment conditions were carried out together with Chalmers University of Technology at VTT. Based on previous experiments, modelling studies on the behaviour of ruthenium oxides in air-ingress accident were conducted. As a part of international collaboration, CHEMPC project also included follow-up of Phebus FP and ISTP programs as well as ISTC program project EVAN. CHEMPC project is funded by Finnish Research Programme on Nuclear Power Plant Safety 2007-2010 (SAFIR2010), VTT, Nordic Nuclear Safety Research (NKS), Institut de Radioprotection et de Sûreté Nucléaire (IRSN) and Fortum Nuclear Services Ltd.
Original languageEnglish
Title of host publicationSAFIR2010: The Finnish Research Programme on Nuclear Power Plant Safety 2007–2010.
Subtitle of host publicationInterim Report
EditorsEija Karita Puska
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
ISBN (Electronic)978-951-38-7267-0
ISBN (Print)978-951-38-7266-3
Publication statusPublished - 2009
MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

Publication series

SeriesVTT Tiedotteita - Meddelanden - Research Notes

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