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Title: Plant process computer replacements - techniques to limit installation schedules and costs

Abstract

Plant process computer systems, a standard fixture in all nuclear power plants, are used to monitor and display important plant process parameters. Scanning thousands of field sensors and alarming out-of-limit values, these computer systems are heavily relied on by control room operators. The original nuclear steam supply system (NSSS) vendor for the power plant often supplied the plant process computer. Designed using sixties and seventies technology, a plant's original process computer has been obsolete for some time. Driven by increased maintenance costs and new US Nuclear Regulatory Commission regulations such as NUREG-0737, Suppl. 1, many utilities have replaced their process computers with more modern computer systems. Given that computer systems are by their nature prone to rapid obsolescence, this replacement cycle will likely repeat. A process computer replacement project can be a significant capital expenditure and must be performed during a scheduled refueling outage. The object of the installation process is to install a working system on schedule. Experience gained by supervising several computer replacement installations has taught lessons that, if applied, will shorten the schedule and limit the risk of costly delays. Examples illustrating this technique are given. This paper and these examples deal only with the installation processmore » and assume that the replacement computer system has been adequately designed, and development and factory tested.« less

Authors:
;  [1]
  1. United Energy Services Corp., Pleasanton, CA (United States)
Publication Date:
OSTI Identifier:
6982722
Report Number(s):
CONF-921102-
Journal ID: ISSN 0003-018X; CODEN: TANSAO
Resource Type:
Conference
Journal Name:
Transactions of the American Nuclear Society; (United States)
Additional Journal Information:
Journal Volume: 66; Conference: Joint American Nuclear Society (ANS)/European Nuclear Society (ENS) international meeting on fifty years of controlled nuclear chain reaction: past, present, and future, Chicago, IL (United States), 15-20 Nov 1992; Journal ID: ISSN 0003-018X
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; NUCLEAR POWER PLANTS; CONTROL SYSTEMS; PROCESS COMPUTERS; INSTALLATION; CONTROL ROOMS; COST; DATA ACQUISITION SYSTEMS; DISPLAY DEVICES; PLANNING; SCHEDULES; COMPUTER OUTPUT DEVICES; COMPUTER-GRAPHICS DEVICES; COMPUTERS; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS; 220400* - Nuclear Reactor Technology- Control Systems

Citation Formats

Baker, M D, and Olson, J L. Plant process computer replacements - techniques to limit installation schedules and costs. United States: N. p., 1992. Web.
Baker, M D, & Olson, J L. Plant process computer replacements - techniques to limit installation schedules and costs. United States.
Baker, M D, and Olson, J L. 1992. "Plant process computer replacements - techniques to limit installation schedules and costs". United States.
@article{osti_6982722,
title = {Plant process computer replacements - techniques to limit installation schedules and costs},
author = {Baker, M D and Olson, J L},
abstractNote = {Plant process computer systems, a standard fixture in all nuclear power plants, are used to monitor and display important plant process parameters. Scanning thousands of field sensors and alarming out-of-limit values, these computer systems are heavily relied on by control room operators. The original nuclear steam supply system (NSSS) vendor for the power plant often supplied the plant process computer. Designed using sixties and seventies technology, a plant's original process computer has been obsolete for some time. Driven by increased maintenance costs and new US Nuclear Regulatory Commission regulations such as NUREG-0737, Suppl. 1, many utilities have replaced their process computers with more modern computer systems. Given that computer systems are by their nature prone to rapid obsolescence, this replacement cycle will likely repeat. A process computer replacement project can be a significant capital expenditure and must be performed during a scheduled refueling outage. The object of the installation process is to install a working system on schedule. Experience gained by supervising several computer replacement installations has taught lessons that, if applied, will shorten the schedule and limit the risk of costly delays. Examples illustrating this technique are given. This paper and these examples deal only with the installation process and assume that the replacement computer system has been adequately designed, and development and factory tested.},
doi = {},
url = {https://www.osti.gov/biblio/6982722}, journal = {Transactions of the American Nuclear Society; (United States)},
issn = {0003-018X},
number = ,
volume = 66,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}

Conference:
Other availability
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