Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings |
| Subtitle of host publication | 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference |
| Place of Publication | New York, NY, USA |
| Publisher | American Society of Mechanical Engineers ASME |
| Pages | 291-300 |
| ISBN (Print) | 978-0-7918-4498-4 |
| Publication status | Published - 2012 |
| MoE publication type | A4 Article in a conference publication |
| Event | 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference - Anaheim, California, United States Duration: 30 Jul 2012 → 3 Aug 2012 |
Conference
| Conference | 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference |
|---|---|
| Country | United States |
| City | Anaheim, California |
| Period | 30/07/12 → 3/08/12 |
Fingerprint
Keywords
- Core debris
- coolability
- severe accident
- nuclear power
- MEWA simulations
Cite this
}
Modeling of dryout in core debris beds of conical and cylindrical geometries. / Takasuo, Eveliina; Hovi, Ville; Ilvonen, Mikko; Holmström, Stefan.
Proceedings: 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. New York, NY, USA : American Society of Mechanical Engineers ASME, 2012. p. 291-300.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
TY - GEN
T1 - Modeling of dryout in core debris beds of conical and cylindrical geometries
AU - Takasuo, Eveliina
AU - Hovi, Ville
AU - Ilvonen, Mikko
AU - Holmström, Stefan
N1 - Project code: 77421
PY - 2012
Y1 - 2012
N2 - A porous particle bed consisting of core debris may be formed as a result of a core melt accident in a nuclear power plant. The coolability of conical (heap-like) and cylindrical (evenly-distributed) ex-vessel debris beds have been investigated in the COOLOCE experiments at VTT. The experiments have been modeled by using the MEWA severe accident analysis code. The main objectives of the modeling were (1) to validate the simulation results against the experiments by comparing the dryout power density predicted by the code to the experimental results and (2) to evaluate the effect of geometry on the coolability by examining the flow field and the development of dryout in the two geometries. In addition to the MEWA simulations, 3D demonstration calculations of the particle bed dryout process have been performed using the in-house code PORFLO. It was found that the simulation and experimental results are in a relatively good agreement. The results suggest that the coolability of the conical debris bed is poorer than that of the cylindrical bed due to the greater height of the conical configuration
AB - A porous particle bed consisting of core debris may be formed as a result of a core melt accident in a nuclear power plant. The coolability of conical (heap-like) and cylindrical (evenly-distributed) ex-vessel debris beds have been investigated in the COOLOCE experiments at VTT. The experiments have been modeled by using the MEWA severe accident analysis code. The main objectives of the modeling were (1) to validate the simulation results against the experiments by comparing the dryout power density predicted by the code to the experimental results and (2) to evaluate the effect of geometry on the coolability by examining the flow field and the development of dryout in the two geometries. In addition to the MEWA simulations, 3D demonstration calculations of the particle bed dryout process have been performed using the in-house code PORFLO. It was found that the simulation and experimental results are in a relatively good agreement. The results suggest that the coolability of the conical debris bed is poorer than that of the cylindrical bed due to the greater height of the conical configuration
KW - Core debris
KW - coolability
KW - severe accident
KW - nuclear power
KW - MEWA simulations
M3 - Conference article in proceedings
SN - 978-0-7918-4498-4
SP - 291
EP - 300
BT - Proceedings
PB - American Society of Mechanical Engineers ASME
CY - New York, NY, USA
ER -