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Optimisation of the Flow Path in a Conceptual Pool Type Reactor under Natural Circulation with Lead Coolant
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0003-3016-3698
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0001-5595-1952
2014 (English)In: Proceedings of the NUTHOS-10, Okinawa, Japan: Atomic Society of Japan , 2014Conference paper, Published paper (Refereed)
Abstract [en]

This contribution investigates the eects of a bypass flow blocking bottom plate and the influenceof the heat transfer between the hot and cold leg in a small pool type reactor cooled throughnatural convection with lead coolant. The computations are carried out using 3D computationalfluid dynamics, where small-detail parts, such as the core and heat exchangers are modeled usinga porous media approach. The introduction of full conjugate heat transfer shows that the heattransfer between the hot and cold leg can deteriorate flow in the cold leg and lead to recirculationzones. These zones become even more pronounced with the introduction of a bottom plate, whichon the other hand also increases the flow through the core and lowers the maximum temperature inthe core by approximately 150 K. Based on the results, redesign suggestions for the bottom plateand the internal wall are made.

Place, publisher, year, edition, pages
Okinawa, Japan: Atomic Society of Japan , 2014.
Keyword [en]
heavy liquid metal, thermal-hydraulics, CFD, turbulence model, GEN IV
National Category
Energy Engineering
Research subject
Energy Technology
Identifiers
URN: urn:nbn:se:kth:diva-163859DOI: 10.13140/RG.2.1.4004.0487OAI: oai:DiVA.org:kth-163859DiVA: diva2:802555
Conference
The 10th International Topical Meeting on Nuclear Thermal Hydraulics, Operation and Safety,Dec. 14-18, 2014 Okinawa, Japan
Projects
GENIUS
Funder
Swedish Research Council, 2009-3991
Note

QC 20150413

Available from: 2015-04-13 Created: 2015-04-13 Last updated: 2015-04-27Bibliographically approved

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Thiele, RomanAnglart, Henryk

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  • apa
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