A review on clogging of recirculating steam generators in Pressurized-Water Reactors

Corrosion product deposits in the secondary side of nuclear power plant steam generators may result in Tube Support Plate (TSP) clogging and tube fouling. Magnetite has an inverse solubility above 150 °C, which favours iron precipitation when temperature increases. Flashing and electrokinetics are t...

Full description

Saved in:
Bibliographic Details
Published in:Progress in nuclear energy (New series) 2017-05, Vol.97, p.182-196
Main Authors: Yang, Guangze, Pointeau, Véronique, Tevissen, Etienne, Chagnes, Alexandre
Format: Article
Language:English
Subjects:
Boilers
Chemical precipitation
Corrosion
Corrosion products
Drawing and ironing
Electric power plants
Electrokinetics
Flashing
Fouling
High-temperature-high-pressure test loop
Iron
Magnetite
Magnetite particle deposition
Modelling studies
Nuclear electric power generation
Nuclear Experiment
Nuclear power plants
Nuclear reactors
Nuclear Theory
Particle deposition
Particulates
Physics
Precipitation
Reactor conditions
Steam electric power generation
Surface chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Corrosion product deposits in the secondary side of nuclear power plant steam generators may result in Tube Support Plate (TSP) clogging and tube fouling. Magnetite has an inverse solubility above 150 °C, which favours iron precipitation when temperature increases. Flashing and electrokinetics are two strengthening processes for precipitation in TSP clogging. Surface chemistry of magnetite particles was discussed to understand its' interaction with TSP. Particle deposition by boiling was identified as the limiting process by performing numerical applications with nominal conditions. Guidelines drawn from this review for investigating specifically TSP clogging consist on conducting representative condition experiments and electrokinetics investigations. [Display omitted] •A feedback analysis is discussed concerning SG tube fouling and TSP clogging.•TSP clogging formation is governed by magnetite particle deposition and precipitation of soluble iron.•Flashing and electrokinetic effects are potentially two strengthening processes for precipitation in TSP clogging.•Deposition by boiling is found dominant in global particle deposition mechanism.
ISSN:0149-1970
1878-4224
DOI:10.1016/j.pnucene.2017.01.010