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Title: Double-Shell Tanks System Maintenance and Recovery Needs Report

Abstract

This report represents an initial effort to identify maintenance equipment needed to support critical components used for delivery of waste feed to the Waste Isolation and Treatment Plant (WTP). Rough estimates of cost benefits for selected maintenance capabilities are provided. A follow-on to this report should include a detailed cost analysis showing cost benefits and tradeoffs in selection and development of specific maintenance capabilities. Critical component failures during delivery of waste feed from the DSTs to the WTP have the potential to idle WTP facilities if the duration of the recovery operations are long enough to allow the WTP to exhaust a planned 60-day lag storage capacity for waste feed. If a critical component within the transfer route fails, current planning does not provide for an alternative HLW feed source. Critical components with relatively high failure frequencies and recovery times are identified, along with a summary of documentation regarding historical maintenance and recovery operations and planning. Components, such as mixer pumps and transfer pumps, are estimated to have relatively long recovery times due, in part, to the current practice of sending spare pumps, when needed, off-site to a remote location, for vendor refurbishment and testing prior to installation in amore » tank. No capability is provided on-site for pump ''run-in''. As neither the spare pumps in storage, installed pumps, or other critical components are subjected to periodic preventive maintenance, and these critical components are planned to be operated intermittently over a long period of time, component failures are to be expected. Recommendations are made for further analysis to identify specific equipment cost benefits, development costs, and tradeoffs in selection of alternatives. This new equipment will provide capabilities for component storage and maintenance in line with vendor recommendations, reduce the duration of recovery operations, and support personnel training and procedure development.« less

Authors:
Publication Date:
Research Org.:
CHG (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
808265
Report Number(s):
RPP-12005, Rev.0
EDT-633805; TRN: US0302316
DOE Contract Number:  
AC27-99RL14047
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 30 Sep 2002
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; MAINTENANCE FACILITIES; MIXERS; PLANNING; STORAGE FACILITIES; TESTING; TRAINING; WASTE RETRIEVAL; MATERIALS HANDLING EQUIPMENT; MAINTENANCE; HANFORD RESERVATION; DST; DOUBLE SHELL TANKS

Citation Formats

SMITH, D F. Double-Shell Tanks System Maintenance and Recovery Needs Report. United States: N. p., 2002. Web. doi:10.2172/808265.
SMITH, D F. Double-Shell Tanks System Maintenance and Recovery Needs Report. United States. doi:10.2172/808265.
SMITH, D F. Mon . "Double-Shell Tanks System Maintenance and Recovery Needs Report". United States. doi:10.2172/808265. https://www.osti.gov/servlets/purl/808265.
@article{osti_808265,
title = {Double-Shell Tanks System Maintenance and Recovery Needs Report},
author = {SMITH, D F},
abstractNote = {This report represents an initial effort to identify maintenance equipment needed to support critical components used for delivery of waste feed to the Waste Isolation and Treatment Plant (WTP). Rough estimates of cost benefits for selected maintenance capabilities are provided. A follow-on to this report should include a detailed cost analysis showing cost benefits and tradeoffs in selection and development of specific maintenance capabilities. Critical component failures during delivery of waste feed from the DSTs to the WTP have the potential to idle WTP facilities if the duration of the recovery operations are long enough to allow the WTP to exhaust a planned 60-day lag storage capacity for waste feed. If a critical component within the transfer route fails, current planning does not provide for an alternative HLW feed source. Critical components with relatively high failure frequencies and recovery times are identified, along with a summary of documentation regarding historical maintenance and recovery operations and planning. Components, such as mixer pumps and transfer pumps, are estimated to have relatively long recovery times due, in part, to the current practice of sending spare pumps, when needed, off-site to a remote location, for vendor refurbishment and testing prior to installation in a tank. No capability is provided on-site for pump ''run-in''. As neither the spare pumps in storage, installed pumps, or other critical components are subjected to periodic preventive maintenance, and these critical components are planned to be operated intermittently over a long period of time, component failures are to be expected. Recommendations are made for further analysis to identify specific equipment cost benefits, development costs, and tradeoffs in selection of alternatives. This new equipment will provide capabilities for component storage and maintenance in line with vendor recommendations, reduce the duration of recovery operations, and support personnel training and procedure development.},
doi = {10.2172/808265},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {9}
}

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