Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In power plants, a reliable operation of the cooling water circuit is of primary importance. Where natural water is used for cooling, corrosion and biofouling may pose challenges to materials integrity. The brackish water in Baltic sea is characterized by a relatively low salt content and unique microbial communities, thus the material challenges may be different from those occurring in sea water. In this study, biofouling on and corrosion behaviour of stainless steels AISI 304L (EN 1.4307), AISI 316L (EN 1.4404) and 254 SMO (EN 1.4547) were investigated in a pilot scale cooling water circuit using brackish water of Baltic sea, obtained from Tvärminne zoological station. The pilot was in operation for 8 weeks, during which open circuit potential recording (OCP) was performed. Other electrochemical methods, cyclic anodic and cathodic polarization measurements and electrochemical impedance spectroscopy (EIS) were applied before and at the end of the pilot experiment. The biofilm coverage was calculated on surfaces. In this paper the obtained results are presented and discussed.
Original languageEnglish
Title of host publicationBaltica X
Subtitle of host publicationInternational Conference on Life Management and Maintenance for Power Plants
EditorsPertti Auerkari
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages17
ISBN (Electronic)978-951-38-8436-9, 978-951-38-8435-2
Publication statusPublished - 2016
MoE publication typeA4 Article in a conference publication
EventBALTICA X - International Conference on Life Management and Maintenance for Power Plants - Cruise, Helsinki-Stockholm, Finland
Duration: 7 Jun 20169 Jun 2016

Publication series

SeriesVTT Technology
Volume261

Conference

ConferenceBALTICA X - International Conference on Life Management and Maintenance for Power Plants
Abbreviated titleBaltica X
CountryFinland
CityHelsinki-Stockholm
Period7/06/169/06/16

Fingerprint

biofouling
cooling water
brackish water
corrosion
steel
seawater
electrochemical method
biofilm
microbial community
power plant
polarization
spectroscopy
cooling
experiment
sea
material
salt content
used water
station

Cite this

Raunio, M., Rajala, P., Priha, O., Huttunen-Saarivirta, E., & Carpén, L. (2016). Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study. In P. Auerkari (Ed.), Baltica X: International Conference on Life Management and Maintenance for Power Plants Espoo: VTT Technical Research Centre of Finland. VTT Technology, Vol.. 261
Raunio, Maija ; Rajala, Pauliina ; Priha, Outi ; Huttunen-Saarivirta, Elina ; Carpén, Leena. / Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study. Baltica X: International Conference on Life Management and Maintenance for Power Plants. editor / Pertti Auerkari. Espoo : VTT Technical Research Centre of Finland, 2016. (VTT Technology, Vol. 261).
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title = "Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study",
abstract = "In power plants, a reliable operation of the cooling water circuit is of primary importance. Where natural water is used for cooling, corrosion and biofouling may pose challenges to materials integrity. The brackish water in Baltic sea is characterized by a relatively low salt content and unique microbial communities, thus the material challenges may be different from those occurring in sea water. In this study, biofouling on and corrosion behaviour of stainless steels AISI 304L (EN 1.4307), AISI 316L (EN 1.4404) and 254 SMO (EN 1.4547) were investigated in a pilot scale cooling water circuit using brackish water of Baltic sea, obtained from Tv{\"a}rminne zoological station. The pilot was in operation for 8 weeks, during which open circuit potential recording (OCP) was performed. Other electrochemical methods, cyclic anodic and cathodic polarization measurements and electrochemical impedance spectroscopy (EIS) were applied before and at the end of the pilot experiment. The biofilm coverage was calculated on surfaces. In this paper the obtained results are presented and discussed.",
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Raunio, M, Rajala, P, Priha, O, Huttunen-Saarivirta, E & Carpén, L 2016, Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study. in P Auerkari (ed.), Baltica X: International Conference on Life Management and Maintenance for Power Plants. VTT Technical Research Centre of Finland, Espoo, VTT Technology, vol. 261, BALTICA X - International Conference on Life Management and Maintenance for Power Plants, Helsinki-Stockholm, Finland, 7/06/16.

Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study. / Raunio, Maija; Rajala, Pauliina; Priha, Outi; Huttunen-Saarivirta, Elina; Carpén, Leena.

Baltica X: International Conference on Life Management and Maintenance for Power Plants. ed. / Pertti Auerkari. Espoo : VTT Technical Research Centre of Finland, 2016. (VTT Technology, Vol. 261).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study

AU - Raunio, Maija

AU - Rajala, Pauliina

AU - Priha, Outi

AU - Huttunen-Saarivirta, Elina

AU - Carpén, Leena

PY - 2016

Y1 - 2016

N2 - In power plants, a reliable operation of the cooling water circuit is of primary importance. Where natural water is used for cooling, corrosion and biofouling may pose challenges to materials integrity. The brackish water in Baltic sea is characterized by a relatively low salt content and unique microbial communities, thus the material challenges may be different from those occurring in sea water. In this study, biofouling on and corrosion behaviour of stainless steels AISI 304L (EN 1.4307), AISI 316L (EN 1.4404) and 254 SMO (EN 1.4547) were investigated in a pilot scale cooling water circuit using brackish water of Baltic sea, obtained from Tvärminne zoological station. The pilot was in operation for 8 weeks, during which open circuit potential recording (OCP) was performed. Other electrochemical methods, cyclic anodic and cathodic polarization measurements and electrochemical impedance spectroscopy (EIS) were applied before and at the end of the pilot experiment. The biofilm coverage was calculated on surfaces. In this paper the obtained results are presented and discussed.

AB - In power plants, a reliable operation of the cooling water circuit is of primary importance. Where natural water is used for cooling, corrosion and biofouling may pose challenges to materials integrity. The brackish water in Baltic sea is characterized by a relatively low salt content and unique microbial communities, thus the material challenges may be different from those occurring in sea water. In this study, biofouling on and corrosion behaviour of stainless steels AISI 304L (EN 1.4307), AISI 316L (EN 1.4404) and 254 SMO (EN 1.4547) were investigated in a pilot scale cooling water circuit using brackish water of Baltic sea, obtained from Tvärminne zoological station. The pilot was in operation for 8 weeks, during which open circuit potential recording (OCP) was performed. Other electrochemical methods, cyclic anodic and cathodic polarization measurements and electrochemical impedance spectroscopy (EIS) were applied before and at the end of the pilot experiment. The biofilm coverage was calculated on surfaces. In this paper the obtained results are presented and discussed.

M3 - Conference article in proceedings

T3 - VTT Technology

BT - Baltica X

A2 - Auerkari, Pertti

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Raunio M, Rajala P, Priha O, Huttunen-Saarivirta E, Carpén L. Corrosion and biofouling on stainless steels in Baltic sea water environment: a cooling water pilot study. In Auerkari P, editor, Baltica X: International Conference on Life Management and Maintenance for Power Plants. Espoo: VTT Technical Research Centre of Finland. 2016. (VTT Technology, Vol. 261).