Experience with pipe replacement in boiling water reactor plants

Conference · Wed Jan 01 04:00:00 EST 1986 · Trans. Am. Nucl. Soc.; (United States)

OSTI ID:6662263

Eckert, G; Gebrath, D

Since the early 1980s, extensive replacement of primary piping has become necessary in a number of boiling water reactor (BWR) power plants for two main reasons: (1) processing problems in primary pipes; and (2) intergranular stress corrosion cracking (IGSCC) in recirculation pipes. Since the beginning of 1980, KWU has been the general contractor responsible for three backfitting operations as per-item 1 above in German nuclear power plants. In 1985, KWU performed backfitting work as per item 2 above and preparation is under way for backfitting the Swiss nuclear power plant Muehleberg. In spite of different construction, different building and system arrangements, different access and transport routes, different partners, and different codes, practically the same experience has been gained and very similar results were obtained. Conditions and methods used for replacement are discussed.

• Research Organization: Kraftwerk Union AG, Offenbach, West Germany
• OSTI ID: 6662263
• Report Number(s): CONF-860610-
• Conference Information: Journal Name: Trans. Am. Nucl. Soc.; (United States) Journal Volume: 52
• 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
ALLOYS
BWR TYPE REACTORS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CONSTRUCTION
COOLING SYSTEMS
CORROSION
CORROSION RESISTANT ALLOYS
CRACKS
DEFECTS
ENERGY SYSTEMS
HEAT AFFECTED ZONE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MAINTENANCE
MATERIALS
MATERIALS TESTING
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NONDESTRUCTIVE TESTING
PIPES
PRIMARY COOLANT CIRCUITS
RADIATION PROTECTION
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR MAINTENANCE
REACTORS
REMOVAL
STAINLESS STEEL-304
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
STRESS CORROSION
TESTING
WATER COOLED REACTORS
WATER MODERATED REACTORS
WELDED JOINTS
ZONES