Multiple hydrogen-air deflagrations in containment and the resulting thermal environments. [PWR; BWR]

Conference · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5114624

Kempka, S N; Ratzel, A C; Baer, M R

The computer program HECTR-ES has been developed to determine component thermal responses to combustion and post-combustion environments in nuclear reactor containments. The computer model is described and results obtained from the model are compared to experimental data obtained from hydrogen-air deflagration tests conducted at Sandia Laboratories. Predicted results for multiple-burn simulations are presented for the Grand Gulf Mark III boiling water reactor utilizing hydrogen generation rates obtained from a MARCH computer simulation of an S/sub 2/D accident scenario. These results indicate that safety-related equipment in containment will exceed LOCA qualification temperature limits if the spray systems in containment are inoperative for either an 8% or 10% (hydrogen volume) ignition criterion.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5114624
• Report Number(s): SAND-82-1215C; CONF-821026-4; ON: DE82022027
• 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
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BWR TYPE REACTORS
CHEMICAL REACTIONS
COMBUSTION
COMPUTER CALCULATIONS
CONTAINMENT
CONTAINMENT BUILDINGS
ELEMENTS
HYDROGEN
LOSS OF COOLANT
NONMETALS
OXIDATION
PRESSURE GRADIENTS
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTOR SAFETY
REACTORS
SAFETY
TEMPERATURE GRADIENTS
THERMOCHEMICAL PROCESSES
WATER COOLED REACTORS
WATER MODERATED REACTORS