The effect of interfacial phenomena on gas solubility measurements in molten salts

Joanna McFarlane; Hunter B. Andrews; Abbey L. McAlister; Jisue Moon; Kevin R. Robb; Charles F. Weber; Andrew Ballard

doi:10.3389/fenrg.2022.1102466

The effect of interfacial phenomena on gas solubility measurements in molten salts

Joanna McFarlane, Hunter B. Andrews, Abbey L. McAlister, Jisue Moon, Kevin R. Robb, Charles F. Weber, Andrew Ballard

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The behavior of fission gases in molten fuel salt reactors governs activity transport from the reactor and can also affect the performance of the reactor itself. The gas solubility can be described thermodynamically by Henry’s law. However, the coupling of the condensed and gas phases depends on the interfacial area, which is difficult to measure or even to estimate. Surfaces of materials in the reactor will include disperse phases in the salt and porosity within the structural materials, covering a range of compositions and sizes. These attributes can affect measurements of fundamental properties such as gas solubility. Methods to obtain gas solubility, surface tension, interfacial energies, and bubble gas transport are reviewed. Recent data from manometric experiments are interpreted based on xenon sorption onto salt-wetted quartz.

Original language	English
Article number	1102466
Journal	Frontiers in Energy Research
Volume	10
DOIs	https://doi.org/10.3389/fenrg.2022.1102466
State	Published - Jan 6 2023

Funding

Funding was provided by the United States Department of Energy ARPA-E Meitner project in collaboration with Moltex Energy Canada, and the United States Department of Energy Nuclear Energy Advanced Reactor Technology Molten Salt Reactor Licensing and Regulatory Development Campaign. Neutron radiography used resources at the CG1D Beamline a the ORNL High Flux Isotope Reactor, a United States DOE Office of Science User Facilities operated by ORNL. Funding was provided by the United States Department of Energy ARPA-E Meitner project in collaboration with Moltex Energy Canada, and the United States Department of Energy Nuclear Energy Advanced Reactor Technology Molten Salt Reactor Licensing and Regulatory Development Campaign. Neutron radiography used resources at the CG1D Beamline a the ORNL High Flux Isotope Reactor, a United States DOE Office of Science User Facilities operated by ORNL.

Funders	Funder number
Moltex Energy Canada
United States Department of Energy Nuclear Energy Advanced Reactor Technology Molten Salt Reactor Licensing and Regulatory Development Campaign
U.S. Department of Energy
Oak Ridge National Laboratory

Keywords

NaCl-MgCl molten salt
Xe and Ar solubility
chloride molten salt reactor
manometric solubility measurement
neutron imaging

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10.3389/fenrg.2022.1102466

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title = "The effect of interfacial phenomena on gas solubility measurements in molten salts",

abstract = "The behavior of fission gases in molten fuel salt reactors governs activity transport from the reactor and can also affect the performance of the reactor itself. The gas solubility can be described thermodynamically by Henry{\textquoteright}s law. However, the coupling of the condensed and gas phases depends on the interfacial area, which is difficult to measure or even to estimate. Surfaces of materials in the reactor will include disperse phases in the salt and porosity within the structural materials, covering a range of compositions and sizes. These attributes can affect measurements of fundamental properties such as gas solubility. Methods to obtain gas solubility, surface tension, interfacial energies, and bubble gas transport are reviewed. Recent data from manometric experiments are interpreted based on xenon sorption onto salt-wetted quartz.",

keywords = "NaCl-MgCl molten salt, Xe and Ar solubility, chloride molten salt reactor, manometric solubility measurement, neutron imaging",

author = "Joanna McFarlane and Andrews, {Hunter B.} and McAlister, {Abbey L.} and Jisue Moon and Robb, {Kevin R.} and Weber, {Charles F.} and Andrew Ballard",

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doi = "10.3389/fenrg.2022.1102466",

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AU - McFarlane, Joanna

AU - Andrews, Hunter B.

AU - McAlister, Abbey L.

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AU - Robb, Kevin R.

AU - Weber, Charles F.

AU - Ballard, Andrew

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N2 - The behavior of fission gases in molten fuel salt reactors governs activity transport from the reactor and can also affect the performance of the reactor itself. The gas solubility can be described thermodynamically by Henry’s law. However, the coupling of the condensed and gas phases depends on the interfacial area, which is difficult to measure or even to estimate. Surfaces of materials in the reactor will include disperse phases in the salt and porosity within the structural materials, covering a range of compositions and sizes. These attributes can affect measurements of fundamental properties such as gas solubility. Methods to obtain gas solubility, surface tension, interfacial energies, and bubble gas transport are reviewed. Recent data from manometric experiments are interpreted based on xenon sorption onto salt-wetted quartz.

AB - The behavior of fission gases in molten fuel salt reactors governs activity transport from the reactor and can also affect the performance of the reactor itself. The gas solubility can be described thermodynamically by Henry’s law. However, the coupling of the condensed and gas phases depends on the interfacial area, which is difficult to measure or even to estimate. Surfaces of materials in the reactor will include disperse phases in the salt and porosity within the structural materials, covering a range of compositions and sizes. These attributes can affect measurements of fundamental properties such as gas solubility. Methods to obtain gas solubility, surface tension, interfacial energies, and bubble gas transport are reviewed. Recent data from manometric experiments are interpreted based on xenon sorption onto salt-wetted quartz.

KW - NaCl-MgCl molten salt

KW - Xe and Ar solubility

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KW - manometric solubility measurement

KW - neutron imaging

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JO - Frontiers in Energy Research

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The effect of interfacial phenomena on gas solubility measurements in molten salts

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