Menu
Search
Filters
Close
Menu

Celebrate World Corrosion Awareness Day with 20% off eCourses and eBooks with code WCAD2024 at checkout!

51318-10516-Properties of Brines formed by Deliquescence of Sea-Salt Aerosols

Picture for Properties of Brines formed by Deliquescence of Sea-Salt Aerosols
Available for download

We have used thermodynamic modeling to predict the chemical composition of the brines that form by deliquescence of sea-salt aerosols, and to estimate brine volumes and salt/brine volume ratios as a function of temperature and atmospheric relative humidity.

 

 

Product Number: 51318-10516-SG
Author: C. R. Bryan / E.J. Schindelholz
Publication Date: 2018
Industry: Energy Generation
$0.00
$20.00
$20.00

For long-term dry storage, most spent nuclear fuel in the United States is placed in welded 304 SS or 316 SS canisters that are stored within passively ventilated overpacks. As the canisters cool, sea-salt aerosols deposited on the canister surfaces will deliquesce to form potentially corrosive brines. We have used thermodynamic modeling to predict the chemical composition of the brines that form by deliquescence of sea-salt aerosols, and to estimate brine volumes and salt/brine volume ratios as a function of temperature and atmospheric relative humidity. We have also mixed representative brines and measured the physical and chemical properties of those brines over a range of temperatures. These data provide a matrix that can be used to predict the evolution of deliquescent brine properties over time on storage canister surfaces, as the canisters cool and surface relative humidity increases. Brine volumes and properties affect corrosion kinetics and damage distributions on the metal surface, and may offer important constraints on the expected rate and extent of corrosion and the timing of SCC crack initiation. The predicted brines do not consider reactions with atmospheric gases that are known to affect sea-salt particle and deliquescent brine compositions under field conditions. The potential effects of such reactions are discussed, and preliminary modeling and experimental data are presented.

Key words: seawater; aerosol; deliquescence; brine; spent nuclear fuel; dry storage canisters

For long-term dry storage, most spent nuclear fuel in the United States is placed in welded 304 SS or 316 SS canisters that are stored within passively ventilated overpacks. As the canisters cool, sea-salt aerosols deposited on the canister surfaces will deliquesce to form potentially corrosive brines. We have used thermodynamic modeling to predict the chemical composition of the brines that form by deliquescence of sea-salt aerosols, and to estimate brine volumes and salt/brine volume ratios as a function of temperature and atmospheric relative humidity. We have also mixed representative brines and measured the physical and chemical properties of those brines over a range of temperatures. These data provide a matrix that can be used to predict the evolution of deliquescent brine properties over time on storage canister surfaces, as the canisters cool and surface relative humidity increases. Brine volumes and properties affect corrosion kinetics and damage distributions on the metal surface, and may offer important constraints on the expected rate and extent of corrosion and the timing of SCC crack initiation. The predicted brines do not consider reactions with atmospheric gases that are known to affect sea-salt particle and deliquescent brine compositions under field conditions. The potential effects of such reactions are discussed, and preliminary modeling and experimental data are presented.

Key words: seawater; aerosol; deliquescence; brine; spent nuclear fuel; dry storage canisters

Product tags
Also Purchased
Picture for Evaluation of Coating Systems to Address Pitting Corrosion of 316 Stainless Steel for Offshore
Available for download

51318-10487-Evaluation of Coating Systems to Address Pitting Corrosion of 316 Stainless Steel for Offshore

Product Number: 51318-10487-SG
Author: Thu Tran Addis
Publication Date: 2018
$20.00

This study was to 1) develop a protocol to test coating performance on pitted stainless steel 2) compare performance of protective coating systems 3) determine application procedure.
Picture for Internal Corrosion Asset Preservation Methodolgy - Case Study
Available for download

51318-10466-Internal Corrosion Asset Preservation Methodolgy - Case Study

Product Number: 51318-10466-SG
Author: Joe Pikas / David Richardson
Publication Date: 2018
$20.00

This paper will provide the understanding for the preservation of assets from the effects of internal corrosion.
Picture for HSLA material design and its susceptibility to cracking during acidic stimulation jobs in Shale well
Available for download

51318-10508-HSLA material design and its susceptibility to cracking during acidic stimulation jobs in Shale well

Product Number: 51318-10508-SG
Author: Carlos Blanc / Guillermo Echaniz / Ramiro Mazzina / Gustavo Kissner
Publication Date: 2018
$20.00

This paper presents the experimental work done with different API 5CT P110 materials under high levels of stress created by a solution of HCl acid.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support