PWR (Pressurized Water Reactor) interfacing system LOCAs (loss-of-coolant accidents): Analysis of risk reduction alternatives

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6417402

Bozoki, G; Kohut, P; Fitzpatrick, R

This analysis suggests that the most cost-effective method to reduce the risk due to Interfacing System Loss of coolant accidents (ISLs) would be to establish a minimum testing frequency for pressure isolation valves. The suggested minimum frequency would be to perform leak testing of the pressure isolation valves at each refueling and after specific individual valve maintenance. In addition, it would also appear that the tests could be performed during descent from power without significantly increasing the risk of an ISL even and effecting considerable cost savings to the utilities.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6417402
• Report Number(s): BNL-NUREG-41400; CONF-890405-2; ON: DE88013680
• 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
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
CONTROL EQUIPMENT
COOLING SYSTEMS
ENERGY SYSTEMS
ENERGY TRANSFER
EQUIPMENT
FAILURE MODE ANALYSIS
FLOW REGULATORS
FLUID MECHANICS
HEAT TRANSFER
HYDRAULICS
LEAK TESTING
LOSS OF COOLANT
MECHANICS
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR SAFETY
REACTORS
RISK ASSESSMENT
SAFETY
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
TESTING
VALVES
WATER COOLED REACTORS
WATER MODERATED REACTORS