Reliability comparison of forced and natural convection residual heat removal in the GCFR

Conference · Mon Oct 01 04:00:00 EDT 1979

OSTI ID:5900220

Raabe, P.; Taniguchi, T.; Torri, A.

Loss of cooling consequences for all breeder cores require an increased reliability of the engineered Residual Heat Removal (RHR) systems provided to assure abundant cooling of the core at decay heat levels. An upflow GCFR core design offers the capability for pressurized decay heat removal by natural convection, thus enhancing core cooling reliability and diversity. A quantitative assessment is presented for the Residual Heat Removal reliability achievable with and without natural convection. The reliability gains due to natural convection are limited by the demand frequency for PCRV depressurization and by the equipment which has to change state in order to establish natural convection. The coolant circulation diversity accomplished with natural convection is a major advantage.

• Research Organization: General Atomic Co., San Diego, CA (USA)
• DOE Contract Number: AT03-76SF71023
• OSTI ID: 5900220
• Report Number(s): GA-A-15555; CONF-790816-80
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210500* -- Power Reactors
Breeding
AFTER-HEAT REMOVAL
BREEDER REACTORS
COMPARATIVE EVALUATIONS
CONVECTION
COOLING SYSTEMS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FORCED CONVECTION
GAS COOLED REACTORS
GCFR REACTOR
GCFR TYPE REACTORS
HELIUM COOLED REACTORS
NATURAL CONVECTION
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
RELIABILITY
REMOVAL
RHR SYSTEMS