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Radioactivity release vs probability for a steam generator tube rupture accident. [PWR]

Conference ·
OSTI ID:6433210
;
A calculation of the probability of obtaining various radioactivity releases from a steam generator tube rupture (SGTR) is presented. The only radioactive isotopes considered are Iodine-131 and Xe-133. The particular accident path considered consists of a double-ended guillotine SGTR followed by loss of offsite power (LOSP). If there is no loss of offsite power, and no system fault other than the SGTR, it is judged that the consequences will be minimal, since the amount of iodine released through the condenser air ejector is expected to be quite small; this is a consequence of the fact that the concentration of iodine in the vapor released from the condenser air ejector is very small compared to that dissolved in the condensate water. In addition, in some plants the condenser air ejector flow is automatically diverted to containment or a high-activity alarm. The analysis presented here is for a typical Westinghouse PWR such as described in RESAR-3S.
Research Organization:
Brookhaven National Lab., Upton, NY (USA)
DOE Contract Number:
EY-76-C-02-0016
OSTI ID:
6433210
Report Number(s):
BNL-NUREG-24994; CONF-781022-36
Country of Publication:
United States
Language:
English

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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
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOILERS
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
FAILURES
FISSION PRODUCT RELEASE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 131
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
PROBABILITY
PWR TYPE REACTORS
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
REACTOR SAFETY
REACTORS
SAFETY
STEAM GENERATORS
TUBES
VAPOR GENERATORS
WASTES
WATER COOLED REACTORS
WATER MODERATED REACTORS
XENON 133
XENON ISOTOPES