Analyses of the OECD MSLB Benchmark with the Codes DYN3D and DYN3D/ATHLET
The code DYN3D coupled with ATHLET was used for the analysis of the OECD Main Steam Line Break (MSLB) Benchmark, which is based on real plant design and operational data of the TMI-1 pressurized water reactor. ATHLET is a thermal hydraulic system code with point or one-dimensional neutron kinetic models. DYN3D consists of three-dimensional nodal kinetic models and a thermal hydraulic part with parallel coolant channels of the reactor core. The following conclusions were reached: (1) If the number of coolant channels for the simulation of the reactor core is chosen too small, the maximum values of local parameters as fuel temperatures are not conservative. (2) If coolant mixing in the reactor vessel is modeled, the accident consequences are mitigated.
- Research Organization:
- Forschungszentrum Rossendorf e.V., Dresden (DE)
- Sponsoring Organization:
- None (US)
- OSTI ID:
- 784580
- Report Number(s):
- NONE; ISSN 0003-018X; CODEN TANSAO; ISSN 0003-018X; CODEN TANSAO
- Country of Publication:
- United States
- Language:
- English
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