1982•OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Requires access
Multiple hydrogen-air deflagrations in containment and the resulting thermal environments. [PWR; BWR]
S.N. Kempka, A. C. Ratzel, Melvin R. Baer
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Abstract
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.