Aging and service wear of auxiliary feedwater pumps for PWR nuclear plants: Volume 2, Aging assessments and monitoring method evaluations

Technical Report · Wed Jun 01 04:00:00 EDT 1988

OSTI ID:7037250

Kitch, D M; Schlonski, J S; Sowatskey, P J; Cesarski, W V

This report was produced under the Detection of Defects and Degradation Monitoring Element of the Nuclear Plant Aging Research Program. It addresses aging assessments and monitoring method evaluations for auxiliary feedwater pumps (AUXFPs). The report contains four major sections: failure causes; review of inspection, surveillance, and condition monitoring (ISCM) methods; evaluation of ISCM methods; and role of maintenance in alleviating aging and service wear. Failure causes attributable to aging and service wear are given and ranked in terms of importance. Cause identifications are made on the bases of experience, postservice examinations, and in situ assessments. Measurable parameters related to failure causes are identified. ISCM methods are also identified, evaluations are made based on Westinghouse (W) experience, and recommendations are given. The methods are intended to yield required capabilities for establishing operational readiness, as well as for detecting and tracking degradation. The role of maintenance in mitigating aging and service wear effects is discussed, and the relationship of maintenance to ISCM methods is identified. Predictive, preventive, and corrective maintenance practices are discussed and evaluated.

• Research Organization: Oak Ridge National Lab., TN (USA); Westinghouse Electric Corp., Pittsburgh, PA (USA). Generation Technology Div.
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7037250
• Report Number(s): NUREG/CR-4597-Vol.2; ORNL-6282-V.2; ON: TI88012499
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
CHEMICAL REACTIONS
CORROSION
FAILURES
FEEDWATER
HYDROGEN COMPOUNDS
MAINTENANCE
MITIGATION
OXYGEN COMPOUNDS
PUMPS
PWR TYPE REACTORS
REACTOR MONITORING SYSTEMS
REACTORS
RECOMMENDATIONS
SEALS
SERVICE LIFE
SURVEILLANCE
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS
WEAR