User's manual for CONTAIN 1. 0, a computer code for severe nuclear reactor accident containment analysis

Technical Report · Wed May 01 04:00:00 EDT 1985

OSTI ID:5435053

Bergeron, K D; Clauser, M J; Harrison, B D; Murata, K K; Rexroth, P E; Schelling, F J; Sciacca, F W; Senglaub, M E; Shire, P R; Trebilcock, W

The CONTAIN 1.0 computer code is an integrated analysis tool for the physical, chemical, and radiological conditions inside a containment building following the release of radioactive material from the primary system in a severe reactor accident. It can also predict the source term to the environment. Purpose of this User's Manual is to provide a basic understanding of the features and models in CONTAIN 1.0 so that users can prepare reasonable input and understand the output and its significance for particular applications. Besides input instructions, the User's Manual also contains brief descriptions of the basic features of the models. Both light-water reactors and liquid-metal reactors can be modeled with CONTAIN 1.0. The code includes atmospheric models for steam/air thermodynamics, intercell flows, condensation/evaporation on structures and aerosols, aerosol behavior, hydrogen burning, sodium/atmosphere chemistry, sodium-spray fires, and sodium-pool fires. It also includes models for reactor cavity phenomena such as core/concrete interactions, coolant-pool boiling, and sodium/concrete interactions. Heat conduction in structures, fission-product decay and transport, radioactive heating, and the thermal-hydraulic and fission-product decontamination aspects of engineered safety features are also modeled.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5435053
• Report Number(s): NUREG/CR-4085; SAND-84-1204; ON: TI85016176
• Country of Publication: United States
• Language: English

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