Facility Details: COTELS

Organization / Localization: NUPEC and National Nuclear Center (NNC) in Kazakhstan
Facility Description: Prototypic melts interacting with concrete, high initial superheat, sustained heating, water addition to the top during MCCI
Test Identification: COTELS 1-10 D-2, D-6, D-8, D-9a
SA-Related Topics / Phenomena: Debris coolability and FCI
Measured Parameters: Debris composition, mass, temperature, concrete type, collapsed depth of debris, gross heat input
Modelling: Ablation depth, temperature, water penetration depth
Simulation Code: COCO
Experimental Research Program:  
Link to PIRT:  
References: [1] H. Nagasaka, M. Kato, I. Sakaki, Y. Cherepnin, Y. Vasilyev, A. Kolodeshnikov, V. Zhdanov, and V. Zuev, “COTELS Project (Papers 1-4): Overview of Project to Study FCI and MCCI During a Severe Accident”, Proceedings of the OECD Workshop on Ex-Vessel Debris Coolability, FZKA 6475, pp. 285-316, 2000, https://publikationen.bibliothek.kit.edu/270047463
[2] Yu Maruyama, Yoshihiro Kojima, Mika Tahara, Hideo Nagasaka, Masami Kato, Alexander A. Kolodeshnikov, Vladimir S. Zhdanov, Yuri S. Vassiliev, A study on concrete degradation during molten core/concrete interactions, Nuclear Engineering and Design, Volume 236, Issues 19–21, 2006, Pages 2237-2244, https://doi.org/10.1016/j.nucengdes.2006.03.055
IP/Copyright Situation:  




Implemented as part of the Seaknot EU funded project (HORIZON-EURATOM-2021-NRT-01 under Grant Agreement No. 101060327) - WP2.6 UNIPI (2024-2026)