Disposition of feedwater nozzle UT indications in a BWR

Conference · Sat Dec 31 23:00:00 EST 1988 · Transactions of the American Nuclear Society; (USA)

OSTI ID:5202102

Leshnoff, S D; Orski, M A

A technical logic is developed, which justifies the disposition of feedwater nozzle ultrasonic testing (UT) indications in order to return to operation without visual inspection of the vessel inside surface. Present regulatory guidance is to inspect the inside surface from the inside if a reportable indication is found. A highly sensitive, tomographic UT technique, developed by Kraftwerk Union, is used to detect and size machined notches in the blend radius and bore regions of a full-sized feedwater nozzle mock-up.

• OSTI ID: 5202102
• Report Number(s): CONF-890604--
• Journal Information: Transactions of the American Nuclear Society; (USA), Journal Name: Transactions of the American Nuclear Society; (USA) Vol. 59; ISSN TANSA; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
ACCURACY
ACOUSTIC TESTING
BWR TYPE REACTORS
CONTAINERS
COOLING SYSTEMS
DESIGN
ENERGY SYSTEMS
ENRICHED URANIUM REACTORS
EPRI
FEEDWATER
FUNCTIONS
GREEN FUNCTION
HYDROGEN COMPOUNDS
INSPECTION
MATERIALS TESTING
MATHEMATICAL MODELS
MATHEMATICS
NONDESTRUCTIVE TESTING
NOZZLES
OPERATION
OXYGEN COMPOUNDS
OYSTER CREEK-1 REACTOR
POWER REACTORS
PRESSURE VESSELS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR OPERATION
REACTORS
REGRESSION ANALYSIS
RESEARCH PROGRAMS
SENSITIVITY
STATISTICS
TESTING
THERMAL REACTORS
ULTRASONIC TESTING
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS