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Steam binding of auxiliary feedwater pumps
Washington, D.C. : United States Nuclear Regulatory Commission, Office of Inspection and Enforcement, 1984.Online purl.fdlp.gov
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Aging assessment of auxiliary feedwater pumps [electronic resource].
Oak Ridge, Tenn. : Oak Ridge National Laboratory. ; Oak Ridge, Tenn. : distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1987ORNL is conducting aging assessments of auxiliary feedwater pumps to provide recommendations for monitoring and assessing the severity of time-dependent degradation as well as to recommend maintenance and replacement practices. Cornerstones of these activities are the identification of failure modes and causes and ranking of causes. Failure modes and causes of interest are those due to aging and service wear. Design details, functional requirements, and operating experience data were used to identify failure modes and causes and to rank the latter. Based on this input, potentially useful inspection, surveillance, and condition monitoring methods that are currently available for use or in the developmental stage were examined and recommendations made. The methods selected are listed and discussed in terms of use and information to be obtained. Relationships between inspection, surveillance, and monitoring and maintenance practices entered prominently into maintenance recommendations. These recommendations, therefore, embrace predictive as well as corrective and preventative maintenance practices. The recommendations are described, inspection details are discussed, and periodic inspection and maintenance interval guidelines are given. Surveillance testing at low-flow conditions is also discussed. It is shown that this type of testing can lead to accelerated aging.
Online OSTI
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Loss of suction to emergency feedwater pumps
Washington, D.C. : United States Nuclear Regulatory Commission, Office of Inspection and Enforcement, 1980.Online purl.fdlp.gov
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