SADD - Severe accident database directory

Ex-Vessel Debris Cooling - (EVDC) (1)

Test Identification: POMECO
SA-Related Topics / Phenomena: Dryout and coolability of particulate debris bed with different particle size, shape and configuration: frictional pressure drops of fluid flow in porous beds packed with non-spherical particles with size distributions
Measured Parameters: Debris bed temperature during quenching with top and bottom flooding
Modelling: Dryout heat flux
Simulation Code: Lipinski’s model for dryout heat flux
Experimental Research Program: National program "Accident Phenomena of Risk Importance" (APRI) supported by consortium of SSM and NPPs in Sweden

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References: [1] A. K. Nayak, B.R. Sehgal, A.V. Stepanyan. An experimental study on quenching of a radially stratified heated porous bed. Nucl. Eng. Des.236 (2006) 2189–2198

[2] M.J. Konovalikhin, B.R. Sehgal, 2001. Investigation of volumetrically heated debris bed quenching. Proc. ICONE-9, Nice, France, 8-12 April.

[3] A Review of Dryout Heat Fluxes and Coolability of Particle Beds. SKI Report 02:17 [https://www.stralsakerhetsmyndigheten.se/contentassets/df03b94d31d94aef9957b294a507b599/0217-a-review-of-dryout-heat-fluxes-and-coolability-of-particle-beds].

[4] B.R. Sehgal, A. Jasiulevicius, M. Konovalikhin, Investigation of the Potential for In-Vessel Melt Retention in the Lower Head of a BWR by Cooling through the Control Rod Guide Tubes. SKI Report 2004:51. [https://www.stralsakerhetsmyndigheten.se/contentassets/cdc3f960f1f146eaba40d4fe1ed8df24/200451-investigation-of-the-potential-for-in-vessel-melt-retention-in-the-lower-head-of-a-bwr-by-cooling-through-the-control-rod-guide-tubes]
Contributed By: A. Komlev, W. Ma
IP/Copyright Situation: None

Facility Details: POMECO