Mexico: Study of Hydrogen Distribution in a BWR MARK II Containment as Result of Emergency Water Injection During the Evolution of a Severe Accident
Creators
- 1. Departamento de Sistemas Nucleares, Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N, La Marquesa, Ocoyoacac, Estado de México, C.P. 52750 (Mexico)
Description
In this paper, the design basis accident (DBA) of a BWR/5 evolving to severe accident, by disabling all ECCSs, is the scenario chosen to study hydrogen generation in core, and then to determine the hydrogen distribution in the drywell. Alternative scenarios are simulated by allowing the recovery of the high pressure cooling system (HPCS) at different times during this scenario. The code RELAP/SCDAPSIM was used to simulate the severe accident scenarios, and the code GASFLOW was used to compute the 3D hydrogen distribution in a drywell of a Mark II primary containment. Results of hydrogen and fission product generation in core, as well as state of core degradation are presented. Then, a comparison of results of hydrogen concentration in drywell between the base case and the cases where coolant injection is recovers is presented. (author)
Additional details
Identifiers
Publishing Information
- ISBN
- 978-92-0-132020-9
- Imprint Title
- Developments in the Analysis and Management of Combustible Gases in Severe Accidents in Water Cooled Reactors following the Fukushima Daiichi Accident. Supplementary Files
- Imprint Pagination
- 330 p.
- Journal Page Range
- p. 215-224
- ISSN
- 1011-4289
- Report number
- IAEA-TECDOC--1939(SUPPLEMENTARY FILES)
Conference
- Title
- Technical Meeting on Hydrogen Management in Severe Accidents
- Dates
- 25-28 Sep 2018
- Place
- Vienna (Austria)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 52019843
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BWR TYPE REACTORS; COMPUTERIZED SIMULATION; CONTAINMENT; COOLANTS; COOLING SYSTEMS; DESIGN-BASIS ACCIDENTS; ECCS; FISSION PRODUCTS; HYDROGEN; INTERSTITIAL HYDROGEN GENERATION; MEXICO; SEVERE ACCIDENTS
- Descriptors DEC
- ACCIDENTS; BEYOND-DESIGN-BASIS ACCIDENTS; DEVELOPING COUNTRIES; ELEMENTS; ENERGY SYSTEMS; ENGINEERED SAFETY SYSTEMS; ENRICHED URANIUM REACTORS; ISOTOPES; LATIN AMERICA; MATERIALS; NONMETALS; NORTH AMERICA; PHYSICAL RADIATION EFFECTS; POWER REACTORS; RADIATION EFFECTS; RADIOACTIVE MATERIALS; REACTOR PROTECTION SYSTEMS; REACTORS; SIMULATION; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 5 refs., 9 figs.