Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001

Martin Bojinov, Petri Kinnunen, Timo Laitinen, Kari Mäkelä, Timo Saario, Pekka Sirkiä

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1 Citation (Scopus)

Abstract

A flow-through cell unit has been installed in the shutdown cooling system 321 at Olkiluoto 1 in May 2000 in order to collect the data needed for establishing the correlations between rate of activity incorporation, water chemistry data and the properties of oxide films formed on material samples.Observations and correlations related to susceptibility to stress corrosion cracking and other forms of corrosion are also looked for. The monitoring unit provides relevant high-temperature water chemistry information that can be well used both for assessing long-term trends and for sensitive detection of rapid changes in the coolant environment. Also the material sample cell has been verified to give a representative view of activity incorporation and oxidation of construction materials in the primary coolant. The results have indicated marked differences between the behaviour of different isotopes and different materials. It has become evident that he thickness of the oxide film is not the only factor that correlates with the extent of activity build-up.
Original languageEnglish
Title of host publicationPlant Life Management
Subtitle of host publicationProgress for structural integrity
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages121-136
ISBN (Electronic)951-38-6281-X
ISBN (Print)951-38-6280-1
Publication statusPublished - 2003
MoE publication typeB3 Non-refereed article in conference proceedings
EventPlant Life Management: Progress for structural integrity - Espoo, Finland
Duration: 1 Jan 20021 Jan 2002

Publication series

SeriesVTT Symposium
Number227
ISSN0357-9387

Seminar

SeminarPlant Life Management
CountryFinland
CityEspoo
Period1/01/021/01/02

Fingerprint

Oxide films
Coolants
Water
Monitoring
Plant shutdowns
Stress corrosion cracking
Cooling systems
Isotopes
Corrosion
Oxidation
Temperature

Cite this

Bojinov, M., Kinnunen, P., Laitinen, T., Mäkelä, K., Saario, T., & Sirkiä, P. (2003). Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001. In Plant Life Management: Progress for structural integrity (pp. 121-136). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 227
Bojinov, Martin ; Kinnunen, Petri ; Laitinen, Timo ; Mäkelä, Kari ; Saario, Timo ; Sirkiä, Pekka. / Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001. Plant Life Management: Progress for structural integrity. Espoo : VTT Technical Research Centre of Finland, 2003. pp. 121-136 (VTT Symposium; No. 227).
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title = "Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001",
abstract = "A flow-through cell unit has been installed in the shutdown cooling system 321 at Olkiluoto 1 in May 2000 in order to collect the data needed for establishing the correlations between rate of activity incorporation, water chemistry data and the properties of oxide films formed on material samples.Observations and correlations related to susceptibility to stress corrosion cracking and other forms of corrosion are also looked for. The monitoring unit provides relevant high-temperature water chemistry information that can be well used both for assessing long-term trends and for sensitive detection of rapid changes in the coolant environment. Also the material sample cell has been verified to give a representative view of activity incorporation and oxidation of construction materials in the primary coolant. The results have indicated marked differences between the behaviour of different isotopes and different materials. It has become evident that he thickness of the oxide film is not the only factor that correlates with the extent of activity build-up.",
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Bojinov, M, Kinnunen, P, Laitinen, T, Mäkelä, K, Saario, T & Sirkiä, P 2003, Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001. in Plant Life Management: Progress for structural integrity. VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 227, pp. 121-136, Plant Life Management, Espoo, Finland, 1/01/02.

Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001. / Bojinov, Martin; Kinnunen, Petri; Laitinen, Timo; Mäkelä, Kari; Saario, Timo; Sirkiä, Pekka.

Plant Life Management: Progress for structural integrity. Espoo : VTT Technical Research Centre of Finland, 2003. p. 121-136 (VTT Symposium; No. 227).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

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T1 - Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001

AU - Bojinov, Martin

AU - Kinnunen, Petri

AU - Laitinen, Timo

AU - Mäkelä, Kari

AU - Saario, Timo

AU - Sirkiä, Pekka

N1 - Project code: H2SU00363

PY - 2003

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N2 - A flow-through cell unit has been installed in the shutdown cooling system 321 at Olkiluoto 1 in May 2000 in order to collect the data needed for establishing the correlations between rate of activity incorporation, water chemistry data and the properties of oxide films formed on material samples.Observations and correlations related to susceptibility to stress corrosion cracking and other forms of corrosion are also looked for. The monitoring unit provides relevant high-temperature water chemistry information that can be well used both for assessing long-term trends and for sensitive detection of rapid changes in the coolant environment. Also the material sample cell has been verified to give a representative view of activity incorporation and oxidation of construction materials in the primary coolant. The results have indicated marked differences between the behaviour of different isotopes and different materials. It has become evident that he thickness of the oxide film is not the only factor that correlates with the extent of activity build-up.

AB - A flow-through cell unit has been installed in the shutdown cooling system 321 at Olkiluoto 1 in May 2000 in order to collect the data needed for establishing the correlations between rate of activity incorporation, water chemistry data and the properties of oxide films formed on material samples.Observations and correlations related to susceptibility to stress corrosion cracking and other forms of corrosion are also looked for. The monitoring unit provides relevant high-temperature water chemistry information that can be well used both for assessing long-term trends and for sensitive detection of rapid changes in the coolant environment. Also the material sample cell has been verified to give a representative view of activity incorporation and oxidation of construction materials in the primary coolant. The results have indicated marked differences between the behaviour of different isotopes and different materials. It has become evident that he thickness of the oxide film is not the only factor that correlates with the extent of activity build-up.

M3 - Conference article in proceedings

SN - 951-38-6280-1

T3 - VTT Symposium

SP - 121

EP - 136

BT - Plant Life Management

PB - VTT Technical Research Centre of Finland

CY - Espoo

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Bojinov M, Kinnunen P, Laitinen T, Mäkelä K, Saario T, Sirkiä P. Monitoring of BWR water chemistry and oxide films on samples at Olkiluoto 1 during the fuel cycle 2000-2001. In Plant Life Management: Progress for structural integrity. Espoo: VTT Technical Research Centre of Finland. 2003. p. 121-136. (VTT Symposium; No. 227).