Reduction of critical path time for BWR recirculation system decontaminations

Technical Report · Thu Mar 01 00:00:00 EST 1990

OSTI ID:7228790

Beaman, T A; Smee, J L ^[1]

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1. Niagara Technical Consultants, Niagara Falls, NY (USA)

The successful use of dilute chemical decontamination technology on a large number of reactor water recirculation (RWR) systems in US BWRs has enabled the various utilities involved to avoid a significant amount of occupational radiation exposure (ORE). Although a lot of progress has already been made in reducing the critical path time required to perform such applications, there are additional ways in which it can be reduced. This report identifies a number of these. Four major decontamination tasks, each of which is normally performed on the critical path of the outage, are examined as they occur chronologically during a typical application. For these, specific recommendations ranging from minor alterations to current procedures all the way up to fundamental adjustments in the way in which the actual work is performed, are presented. The potential time savings are then summarized based upon three hypothetical levels of effort, minimum, medium and maximum, that a particular utility may be willing to invest. 3 refs., 6 figs., 5 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Niagara Technical Consultants, Niagara Falls, NY (USA)
• Sponsoring Organization: EPRI
• OSTI ID: 7228790
• Report Number(s): EPRI-NP-6778; TRN: 90-011709
• Country of Publication: United States
• Language: English

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