MARCH-HECTR analysis of selected accidents in an ice-condenser containment. [PWR]

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:6112424

Camp, A L; Behr, V L; Haskin, F E

The MARCH and HECTR computer codes are used in this study to examine hydrogen production, transport, and combustion in an ice-condenser containment for a number of hypothesized severe accidents. Both degraded-core and core-meltdown accidents are treated. The sensitivity of the containment pressure-temperature response is assessed for a number of factors, including the hydrogen and steam source-term assumptions, ignition and propagation limits, combustion completeness, flame speed, spray operation, and recirculation fan operation. The highest containment pressures occur for those cases where the igniters are assumed to fail, the recirculation fans or containment sprays are assumed to fail, or very large steam and hydrogen releases accompanying vessel breach are predicted.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6112424
• Report Number(s): NUREG/CR-3912; SAND-83-0501; ON: TI85007342
• 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
CHEMICAL REACTIONS
COMBUSTION
COMPUTER CALCULATIONS
CONDENSERS
CONTAINMENT
CONTAINMENT SYSTEMS
ECCS
ELEMENTS
ENGINEERED SAFETY SYSTEMS
HYDROGEN
ICE CONDENSERS
MELTDOWN
NONMETALS
OXIDATION
PRESSURE GRADIENTS
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR PROTECTION SYSTEMS
REACTOR SAFETY
REACTORS
SAFETY
STEAM CONDENSERS
THERMOCHEMICAL PROCESSES
VAPOR CONDENSERS
WATER COOLED REACTORS
WATER MODERATED REACTORS