Numerical modeling of oxygen mass transfer from PbO spheres packed bed to liquid lead bismuth eutectic: A venturi-type PbO mass exchanger

Alessandro Marino; Steven Keijers; Jun Lim; Joris van den Bosch; Johan Deconinck

doi:10.1016/j.nucengdes.2013.09.018

Numerical modeling of oxygen mass transfer from PbO spheres packed bed to liquid lead bismuth eutectic: A venturi-type PbO mass exchanger

Alessandro Marino, Steven Keijers, Jun Lim, Joris van den Bosch, Johan Deconinck

Research output › peer-review

Abstract

A numerical model of oxygen mass transfer from a PbO spheres packed bed into liquid lead bismuth eutectic (LBE) has been developed and implemented in the commercial CFD code CFX. Based on the model, a venturi-type PbO mass exchanger (PbO MX) has been designed. The venturi-type has been selected to create a re-circulation flow from the outlet to the inlet of PbO spheres packed bed in order to avoid the poisoning of PbO surface by dissolved metallic impurities in the LBE circuit. The oxygen concentration at the inlet can be kept high enough by the re-circulation flow to prevent the poisoning of the PbO surface. This is expected to improve the reliability and stability of the PbO MX. The oxygen mass transfer in LBE through the PbO MX and the effect of re-circulation flow on the oxygen concentration are simulated and discussed. The developed CFD model gives a robust design of an oxygen control system, based on PbO MX technology.

Original language	English
Pages (from-to)	576– 581
Journal	Nuclear Engineering and Design
Volume	450
DOIs	https://doi.org/10.1016/j.nucengdes.2013.09.018
State	Published - 1 Sep 2013

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Cite this

@article{25caed40f4b247a98ec3042ea9b6adae,

title = "Numerical modeling of oxygen mass transfer from PbO spheres packed bed to liquid lead bismuth eutectic: A venturi-type PbO mass exchanger",

abstract = "A numerical model of oxygen mass transfer from a PbO spheres packed bed into liquid lead bismuth eutectic (LBE) has been developed and implemented in the commercial CFD code CFX. Based on the model, a venturi-type PbO mass exchanger (PbO MX) has been designed. The venturi-type has been selected to create a re-circulation flow from the outlet to the inlet of PbO spheres packed bed in order to avoid the poisoning of PbO surface by dissolved metallic impurities in the LBE circuit. The oxygen concentration at the inlet can be kept high enough by the re-circulation flow to prevent the poisoning of the PbO surface. This is expected to improve the reliability and stability of the PbO MX. The oxygen mass transfer in LBE through the PbO MX and the effect of re-circulation flow on the oxygen concentration are simulated and discussed. The developed CFD model gives a robust design of an oxygen control system, based on PbO MX technology.",

keywords = "MYRRHA, LBE, Oxygen control, PbO mass exchanger, CFD",

author = "Alessandro Marino and Steven Keijers and Jun Lim and Bosch, {Joris van den} and Johan Deconinck",

note = "Score=10",

year = "2013",

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doi = "10.1016/j.nucengdes.2013.09.018",

language = "English",

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journal = "Nuclear Engineering and Design",

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TY - JOUR

T1 - Numerical modeling of oxygen mass transfer from PbO spheres packed bed to liquid lead bismuth eutectic: A venturi-type PbO mass exchanger

AU - Marino, Alessandro

AU - Keijers, Steven

AU - Lim, Jun

AU - Bosch, Joris van den

AU - Deconinck, Johan

N1 - Score=10

PY - 2013/9/1

Y1 - 2013/9/1

N2 - A numerical model of oxygen mass transfer from a PbO spheres packed bed into liquid lead bismuth eutectic (LBE) has been developed and implemented in the commercial CFD code CFX. Based on the model, a venturi-type PbO mass exchanger (PbO MX) has been designed. The venturi-type has been selected to create a re-circulation flow from the outlet to the inlet of PbO spheres packed bed in order to avoid the poisoning of PbO surface by dissolved metallic impurities in the LBE circuit. The oxygen concentration at the inlet can be kept high enough by the re-circulation flow to prevent the poisoning of the PbO surface. This is expected to improve the reliability and stability of the PbO MX. The oxygen mass transfer in LBE through the PbO MX and the effect of re-circulation flow on the oxygen concentration are simulated and discussed. The developed CFD model gives a robust design of an oxygen control system, based on PbO MX technology.

AB - A numerical model of oxygen mass transfer from a PbO spheres packed bed into liquid lead bismuth eutectic (LBE) has been developed and implemented in the commercial CFD code CFX. Based on the model, a venturi-type PbO mass exchanger (PbO MX) has been designed. The venturi-type has been selected to create a re-circulation flow from the outlet to the inlet of PbO spheres packed bed in order to avoid the poisoning of PbO surface by dissolved metallic impurities in the LBE circuit. The oxygen concentration at the inlet can be kept high enough by the re-circulation flow to prevent the poisoning of the PbO surface. This is expected to improve the reliability and stability of the PbO MX. The oxygen mass transfer in LBE through the PbO MX and the effect of re-circulation flow on the oxygen concentration are simulated and discussed. The developed CFD model gives a robust design of an oxygen control system, based on PbO MX technology.

KW - MYRRHA

KW - LBE

KW - Oxygen control

KW - PbO mass exchanger

KW - CFD

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/12583438

U2 - 10.1016/j.nucengdes.2013.09.018

DO - 10.1016/j.nucengdes.2013.09.018

M3 - Article

SN - 0029-5493

VL - 450

SP - 576

EP - 581

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

ER -