A mass transfer correlation for packed bed of lead oxide spheres in flowing lead–bismuth eutectic at high Péclet numbers

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@article{8d22b89c8e35494c8bc65aa2e4743449,
title = "A mass transfer correlation for packed bed of lead oxide spheres in flowing lead–bismuth eutectic at high P{\'e}clet numbers",
abstract = "It is widely recognized that the control of the activity of dissolved oxygen is essential for the use of lead–bismuth eutectic (LBE) as primary coolant for nuclear systems. A lead oxide mass exchanger (PbO MX) comprised of a packed bed of lead oxide spheres is a promising solution to regulate the dissolved oxygen activity in the LBE. In order to design and operate a PbO MX properly, the dissolution kinetics of PbO in flowing LBE should be determined. A high-fidelity Computational Fluid Dynamic (CFD) model of solid-to-liquid mass transfer has been developed to determine the mass transfer coefficient of a PbO MX in flowing LBE. We validated the developed CFD model against experimental data obtained from the LBE test loop CRAFT, at SCK•CEN. The model is in good agreement with the experimental data. The effect of the channel to particle diameter ratio (R) on the mass transfer coefficient was evaluated by using the validated model. A mass transfer correlation for PbO MX was obtained, in terms of the Sherwood number, by fitting the simulation results for the general case of a random packed bed with a porosity of about 0.4.",
keywords = "MYRRHA, LBE, Oxygen control, CFD, PbO mass exchanger, Sherwood number",
author = "Alessandro Marino and Jun Lim and Steven Keijers and Simon Vanmaercke and Alexander Aerts and Kris Rosseel and Johan Deconinck and {Van den Bosch}, Joris",
note = "SCORE=10",
year = "2015",
doi = "10.1016/j.ijheatmasstransfer.2014.09.079",
language = "English",
volume = "80",
pages = "737--747",
journal = "International Journal of Heat and Mass Transfer",
issn = "0017-9310",
publisher = "Elsevier",

}

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TY - JOUR

T1 - A mass transfer correlation for packed bed of lead oxide spheres in flowing lead–bismuth eutectic at high Péclet numbers

AU - Marino, Alessandro

AU - Lim, Jun

AU - Keijers, Steven

AU - Vanmaercke, Simon

AU - Aerts, Alexander

AU - Rosseel, Kris

AU - Deconinck, Johan

AU - Van den Bosch, Joris

N1 - SCORE=10

PY - 2015

Y1 - 2015

N2 - It is widely recognized that the control of the activity of dissolved oxygen is essential for the use of lead–bismuth eutectic (LBE) as primary coolant for nuclear systems. A lead oxide mass exchanger (PbO MX) comprised of a packed bed of lead oxide spheres is a promising solution to regulate the dissolved oxygen activity in the LBE. In order to design and operate a PbO MX properly, the dissolution kinetics of PbO in flowing LBE should be determined. A high-fidelity Computational Fluid Dynamic (CFD) model of solid-to-liquid mass transfer has been developed to determine the mass transfer coefficient of a PbO MX in flowing LBE. We validated the developed CFD model against experimental data obtained from the LBE test loop CRAFT, at SCK•CEN. The model is in good agreement with the experimental data. The effect of the channel to particle diameter ratio (R) on the mass transfer coefficient was evaluated by using the validated model. A mass transfer correlation for PbO MX was obtained, in terms of the Sherwood number, by fitting the simulation results for the general case of a random packed bed with a porosity of about 0.4.

AB - It is widely recognized that the control of the activity of dissolved oxygen is essential for the use of lead–bismuth eutectic (LBE) as primary coolant for nuclear systems. A lead oxide mass exchanger (PbO MX) comprised of a packed bed of lead oxide spheres is a promising solution to regulate the dissolved oxygen activity in the LBE. In order to design and operate a PbO MX properly, the dissolution kinetics of PbO in flowing LBE should be determined. A high-fidelity Computational Fluid Dynamic (CFD) model of solid-to-liquid mass transfer has been developed to determine the mass transfer coefficient of a PbO MX in flowing LBE. We validated the developed CFD model against experimental data obtained from the LBE test loop CRAFT, at SCK•CEN. The model is in good agreement with the experimental data. The effect of the channel to particle diameter ratio (R) on the mass transfer coefficient was evaluated by using the validated model. A mass transfer correlation for PbO MX was obtained, in terms of the Sherwood number, by fitting the simulation results for the general case of a random packed bed with a porosity of about 0.4.

KW - MYRRHA

KW - LBE

KW - Oxygen control

KW - CFD

KW - PbO mass exchanger

KW - Sherwood number

UR - http://ecm.sckcen.be/OTCS/llisapi.dll?func=ll&objaction=overview&objid=12798880

U2 - 10.1016/j.ijheatmasstransfer.2014.09.079

DO - 10.1016/j.ijheatmasstransfer.2014.09.079

M3 - Article

VL - 80

SP - 737

EP - 747

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

ER -

ID: 787702