Modelling the Interaction of a Molten Seal and Solid Particles using SPH and DEM Simulations : Application for a Passive New SCRAM System for LMR

Simon Vanmaercke; Gert Van den Eynde; Engelbert Tijskens; Yann Bartosiewicz; Katrien Van Tichelen

Modelling the Interaction of a Molten Seal and Solid Particles using SPH and DEM Simulations : Application for a Passive New SCRAM System for LMR

Simon Vanmaercke, Gert Van den Eynde, Engelbert Tijskens, Yann Bartosiewicz, Katrien Van Tichelen

Research output › peer-review

Abstract

A new shutdown system that does not rely on absorber rods, is being developed at SCK.CEN and UCL for application in Liquid Metal Reactors (LMR). The system consists of tubes filled with absorber particles. During normal operation, these particles are kept above the active core by means of a metallic melt seal. In case of an accident, the system is activated by the temperature increase in the coolant. This leads to melting of the metal seal, releasing the absorber particles into the core. The resulting flow of the particles has been studied both experimentally, and with Discrete Element Method (DEM) simulations. This paper focusses on the second important aspect of the safety system, being the melting and flowing of the metallic seal in interaction with the solid absorber particles moving through the molten seal.

Original language	English
Title of host publication	Nureth-14 Proceedings
Place of Publication	Toronto, Canada
State	Published - Sep 2011
Event	2014 - NURETH: 14th International Topical Meeting on Nuclear Reactor Thermal Hydraulics - Toronto Duration: 25 Sep 2011 → 30 Sep 2011

Conference

Conference	2014 - NURETH
Abbreviated title	NURETH14
Country/Territory	Canada
City	Toronto
Period	2011-09-25 → 2011-09-30

Cite this

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title = "Modelling the Interaction of a Molten Seal and Solid Particles using SPH and DEM Simulations : Application for a Passive New SCRAM System for LMR",

abstract = "A new shutdown system that does not rely on absorber rods, is being developed at SCK.CEN and UCL for application in Liquid Metal Reactors (LMR). The system consists of tubes filled with absorber particles. During normal operation, these particles are kept above the active core by means of a metallic melt seal. In case of an accident, the system is activated by the temperature increase in the coolant. This leads to melting of the metal seal, releasing the absorber particles into the core. The resulting flow of the particles has been studied both experimentally, and with Discrete Element Method (DEM) simulations. This paper focusses on the second important aspect of the safety system, being the melting and flowing of the metallic seal in interaction with the solid absorber particles moving through the molten seal.",

keywords = "SCRAM, DEM, SPH",

author = "Simon Vanmaercke and {Van den Eynde}, Gert and Engelbert Tijskens and Yann Bartosiewicz and {Van Tichelen}, Katrien",

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AU - Vanmaercke, Simon

AU - Van den Eynde, Gert

AU - Tijskens, Engelbert

AU - Bartosiewicz, Yann

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AB - A new shutdown system that does not rely on absorber rods, is being developed at SCK.CEN and UCL for application in Liquid Metal Reactors (LMR). The system consists of tubes filled with absorber particles. During normal operation, these particles are kept above the active core by means of a metallic melt seal. In case of an accident, the system is activated by the temperature increase in the coolant. This leads to melting of the metal seal, releasing the absorber particles into the core. The resulting flow of the particles has been studied both experimentally, and with Discrete Element Method (DEM) simulations. This paper focusses on the second important aspect of the safety system, being the melting and flowing of the metallic seal in interaction with the solid absorber particles moving through the molten seal.

KW - SCRAM

KW - DEM

KW - SPH

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_120871

UR - http://knowledgecentre.sckcen.be/so2/bibref/9029

M3 - In-proceedings paper

BT - Nureth-14 Proceedings

CY - Toronto, Canada

T2 - 2014 - NURETH

Y2 - 25 September 2011 through 30 September 2011

ER -