Menu
Search
Filters
Close
Menu

97120 AN ASSESSMENT OF UNDERGROUND AND ABOVEGROUND STEAM SYSTEM FAILURES IN THE SRS WASTE TANK FARMS

Picture for 97120 AN ASSESSMENT OF UNDERGROUND AND ABOVEGROUND
Available for download
Product Number: 51300-97120-SG
ISBN: 97120 1997 CP
Author: T. C. Hsu, M. S. Shurrab, B. J. Wiersma
$0.00
$20.00
$20.00
Underground steam system failures in waste tank farms at the Savamiah River Site (SRS) increased significantly in the 3-4 year period prior to 1995. The primary safety issues created by the failures were the formation of sub-surface voids in soil and the loss of steam jet transfer and waste evaporation capability, and the loss of heating and ventilation to the tanks. The average annual cost for excavation and repair of the underground steam system was estimated to be several million dollars. These factors prompted engineering persomel to re-consider long-term solutions to the problem. The primary cause of these failures was the inadequate thermal insulation utilized for steam limes associated with older tanks. The failure mechanisms were either pitting or localized general corrosion on the exterior of the pipe beneath the thermal insulation. The most realistic and practical solution is to replace the underground lines by installing aboveground steam systems, although this option will incur significant initial capital costs. Steam system components, installed aboveground in other areas of the tank fm have experienced few failures, while in continuous use. As a result, piecewise installation of temporary aboveground steam systems have been implemented in F-area whenever opportunities, i.e., failure, present themselves. Keywords: underground corrosion, thermal insulation, pitting
Underground steam system failures in waste tank farms at the Savamiah River Site (SRS) increased significantly in the 3-4 year period prior to 1995. The primary safety issues created by the failures were the formation of sub-surface voids in soil and the loss of steam jet transfer and waste evaporation capability, and the loss of heating and ventilation to the tanks. The average annual cost for excavation and repair of the underground steam system was estimated to be several million dollars. These factors prompted engineering persomel to re-consider long-term solutions to the problem. The primary cause of these failures was the inadequate thermal insulation utilized for steam limes associated with older tanks. The failure mechanisms were either pitting or localized general corrosion on the exterior of the pipe beneath the thermal insulation. The most realistic and practical solution is to replace the underground lines by installing aboveground steam systems, although this option will incur significant initial capital costs. Steam system components, installed aboveground in other areas of the tank fm have experienced few failures, while in continuous use. As a result, piecewise installation of temporary aboveground steam systems have been implemented in F-area whenever opportunities, i.e., failure, present themselves. Keywords: underground corrosion, thermal insulation, pitting
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00829 TECHNIQUES FOR ACCURATE EVALUATION OF
Available for download

00829 TECHNIQUES FOR ACCURATE EVALUATION OF ABOVEGROUND STORAGE TANK CATHODIC PROTECTION SYSTEM EFFECTIVENESS

Product Number: 51300-00829-SG
ISBN: 00829 2000 CP
Author: Tim Whited
$20.00
Picture for 00727 LONG TERM PERFORMANCE OF IMPRESSED CURRENT
Available for download

00727 LONG TERM PERFORMANCE OF IMPRESSED CURRENT CATHODIC PROTECTION ON LARGE DIAMETER, ELEVATED TEMPERATURE ABOVEGROUND STORAGE TANK BOTTOMS

Product Number: 51300-00727-SG
ISBN: 00727 2000 CP
Author: Philip D. Simon
$20.00
Picture for 01591 Application Of The 100mv Polarization
Available for download

01591 Application Of The 100mv Polarization Criteria For Aboveground Storage Tank Bottoms

Product Number: 51300-01591-SG
ISBN: 01591 2001 CP
Author: Louis Koszewski
$20.00
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