| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Jäppinen, Essi
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2021A comparative study of hydrazine alternatives in simulated steam generator conditions—Oxygen reaction kinetics and interaction with carbon steelcitations
- 2019Effect of lead and applied potential on corrosion of carbon steel in steam generator crevice solutionscitations
- 2017Effect of octadecylamine on carbon steel corrosion under PWR/VVER secondary side conditions
- 2017Effect of chloride transients on corrosion of low-alloyed steel under oxygenated high-temperature water conditions
- 2017Localized corrosion of pressure vessel steel in a boiling water reactor cladding flawcitations
- 2017Localized corrosion of pressure vessel steel in a boiling water reactor cladding flaw:Modeling of electrochemical conditions and dedicated experimentscitations
- 2017Corrosion Behavior of Carbon Steel Coated with Octadecylamine in the Secondary Circuit of a Pressurized Water Reactorcitations
- 2016Improving passivation of carbon steel in steam cycles of power plants with a film forming amine
- 2016Determining Zeta Potential of Magnetite Particles in PWR Secondary Side Water Treated with Ammonia or Ethanolamine by Using Streaming Potential Technique
- 2014The Effect of Temperature on the Zeta Potential of Magnetite Particles in Ammonia, Morpholine and Ethanolamine Solutions
Places of action
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document
Determining Zeta Potential of Magnetite Particles in PWR Secondary Side Water Treated with Ammonia or Ethanolamine by Using Streaming Potential Technique
Abstract
Magnetite (Fe<sub>3</sub>O<sub>4</sub>) particles originating from secondary side carbon steel tubing and components of a PWR plant can cause different harmful corrosion problems when they deposit onto the steam generator (SG) surfaces. Magnetite deposits situated on the steam generator tubes, tube support plates and other components create a favourable environment for corrosion as different impurities are enriched beneath the deposits. Deposits also hinder the water flow and heat transfer. The susceptibility to deposition can be evaluated by measuring the difference between the surface charge of magnetite particles and SG surfaces. The sign and the magnitude of the surface charge can be described with zeta potential. There are several methods for determining zeta potential but most of them are only available for room temperature measurements. In this study, streaming potentialtechnique is used for determining the zeta potential of magnetite particles in secondary side PWR water adjusted with ammonia or ethanolamine to pHRT=9.8 as a function of temperature (RT to 260°C). These values are compared to values previously measured with pHRT=9.2. The room temperature values for ammonia adjusted measurement solution are also compared to values measured with commercial zeta potential measurement equipment.