Impact of Ag and NOx compounds on the transport of ruthenium in the primary circuit of nuclear power plant in a severe accident

Ivan Kajan (Corresponding Author), Teemu Kärkelä, Unto Tapper, Leena-Sisko Johansson, Mélany Gouëllo, Henrik Ramebäck, Stina Holmgren, Ari Auvinen, Christian Ekberg

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Ruthenium is a semi-volatile element originating as a fission product in nuclear reactors that can be released in case of a severe nuclear accident. In this work, the impact of atmosphere composition on the transport of ruthenium through the primary circuit was examined. The effects of silver nanoparticles representing aerosols and NO2 gas as a product of air radiolysis were studied. Quantification of ruthenium transported both as gas and aerosol was performed. Chemical composition of ruthenium species was evaluated. The transport of gaseous ruthenium through the facility increased significantly when NO2 gas was fed into the atmosphere. When both silver aerosols and NO2 were fed into the atmosphere, the transport of ruthenium in gaseous and aerosol forms was promoted. It was concluded that the composition of atmosphere in the primary circuit will have a notable effect on the speciation of ruthenium transported into the containment building during a severe accident and thus on the potential radioactive release to the environment.
Original languageEnglish
Pages (from-to)9-19
Number of pages11
JournalAnnals of Nuclear Energy
Volume100
Issue numberPart 2
DOIs
Publication statusPublished - 1 Feb 2017
MoE publication typeA1 Journal article-refereed

Fingerprint

Ruthenium
Nuclear power plants
Accidents
Networks (circuits)
Aerosols
Silver
Chemical analysis
Gases
Radiolysis
Fission products
Nuclear reactors
Nanoparticles
Air

Keywords

  • air ingress
  • air radiolysis
  • nuclear power plant
  • ruthenium
  • severe accident

Cite this

Kajan, Ivan ; Kärkelä, Teemu ; Tapper, Unto ; Johansson, Leena-Sisko ; Gouëllo, Mélany ; Ramebäck, Henrik ; Holmgren, Stina ; Auvinen, Ari ; Ekberg, Christian. / Impact of Ag and NOx compounds on the transport of ruthenium in the primary circuit of nuclear power plant in a severe accident. In: Annals of Nuclear Energy. 2017 ; Vol. 100, No. Part 2. pp. 9-19.
@article{3c318e0b2ee84aec8f650bb6c5d7395e,
title = "Impact of Ag and NOx compounds on the transport of ruthenium in the primary circuit of nuclear power plant in a severe accident",
abstract = "Ruthenium is a semi-volatile element originating as a fission product in nuclear reactors that can be released in case of a severe nuclear accident. In this work, the impact of atmosphere composition on the transport of ruthenium through the primary circuit was examined. The effects of silver nanoparticles representing aerosols and NO2 gas as a product of air radiolysis were studied. Quantification of ruthenium transported both as gas and aerosol was performed. Chemical composition of ruthenium species was evaluated. The transport of gaseous ruthenium through the facility increased significantly when NO2 gas was fed into the atmosphere. When both silver aerosols and NO2 were fed into the atmosphere, the transport of ruthenium in gaseous and aerosol forms was promoted. It was concluded that the composition of atmosphere in the primary circuit will have a notable effect on the speciation of ruthenium transported into the containment building during a severe accident and thus on the potential radioactive release to the environment.",
keywords = "air ingress, air radiolysis, nuclear power plant, ruthenium, severe accident",
author = "Ivan Kajan and Teemu K{\"a}rkel{\"a} and Unto Tapper and Leena-Sisko Johansson and M{\'e}lany Gou{\"e}llo and Henrik Rameb{\"a}ck and Stina Holmgren and Ari Auvinen and Christian Ekberg",
note = "ISI: NUCLEAR SCIENCE & TECHNOLOGY",
year = "2017",
month = "2",
day = "1",
doi = "10.1016/j.anucene.2016.10.008",
language = "English",
volume = "100",
pages = "9--19",
journal = "Annals of Nuclear Energy",
issn = "0306-4549",
publisher = "Elsevier",
number = "Part 2",

}

Impact of Ag and NOx compounds on the transport of ruthenium in the primary circuit of nuclear power plant in a severe accident. / Kajan, Ivan (Corresponding Author); Kärkelä, Teemu; Tapper, Unto; Johansson, Leena-Sisko; Gouëllo, Mélany; Ramebäck, Henrik; Holmgren, Stina; Auvinen, Ari; Ekberg, Christian.

In: Annals of Nuclear Energy, Vol. 100, No. Part 2, 01.02.2017, p. 9-19.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Impact of Ag and NOx compounds on the transport of ruthenium in the primary circuit of nuclear power plant in a severe accident

AU - Kajan, Ivan

AU - Kärkelä, Teemu

AU - Tapper, Unto

AU - Johansson, Leena-Sisko

AU - Gouëllo, Mélany

AU - Ramebäck, Henrik

AU - Holmgren, Stina

AU - Auvinen, Ari

AU - Ekberg, Christian

N1 - ISI: NUCLEAR SCIENCE & TECHNOLOGY

PY - 2017/2/1

Y1 - 2017/2/1

N2 - Ruthenium is a semi-volatile element originating as a fission product in nuclear reactors that can be released in case of a severe nuclear accident. In this work, the impact of atmosphere composition on the transport of ruthenium through the primary circuit was examined. The effects of silver nanoparticles representing aerosols and NO2 gas as a product of air radiolysis were studied. Quantification of ruthenium transported both as gas and aerosol was performed. Chemical composition of ruthenium species was evaluated. The transport of gaseous ruthenium through the facility increased significantly when NO2 gas was fed into the atmosphere. When both silver aerosols and NO2 were fed into the atmosphere, the transport of ruthenium in gaseous and aerosol forms was promoted. It was concluded that the composition of atmosphere in the primary circuit will have a notable effect on the speciation of ruthenium transported into the containment building during a severe accident and thus on the potential radioactive release to the environment.

AB - Ruthenium is a semi-volatile element originating as a fission product in nuclear reactors that can be released in case of a severe nuclear accident. In this work, the impact of atmosphere composition on the transport of ruthenium through the primary circuit was examined. The effects of silver nanoparticles representing aerosols and NO2 gas as a product of air radiolysis were studied. Quantification of ruthenium transported both as gas and aerosol was performed. Chemical composition of ruthenium species was evaluated. The transport of gaseous ruthenium through the facility increased significantly when NO2 gas was fed into the atmosphere. When both silver aerosols and NO2 were fed into the atmosphere, the transport of ruthenium in gaseous and aerosol forms was promoted. It was concluded that the composition of atmosphere in the primary circuit will have a notable effect on the speciation of ruthenium transported into the containment building during a severe accident and thus on the potential radioactive release to the environment.

KW - air ingress

KW - air radiolysis

KW - nuclear power plant

KW - ruthenium

KW - severe accident

UR - http://www.scopus.com/inward/record.url?scp=84993996141&partnerID=8YFLogxK

U2 - 10.1016/j.anucene.2016.10.008

DO - 10.1016/j.anucene.2016.10.008

M3 - Article

VL - 100

SP - 9

EP - 19

JO - Annals of Nuclear Energy

JF - Annals of Nuclear Energy

SN - 0306-4549

IS - Part 2

ER -