79 citations · 501 across the 23 of their papers we have counts for
24 papers
Neutron imaging of high-temperature Na-Zn Cells: implications for cell design and fabrication
William Nash, Martins Sarma, Tobias Lappan +6
Electrochemical cells employing Sodium (Na) and Zinc (Zn) electrodes and a chloride salt electrolyte have been imaged by neutron radiography during cycling. The use of such abundan…
Yamdb: easily accessible thermophysical properties of liquid metals and molten salts
Tom Weier, William Nash, Paolo Personnettaz +1
Yamdb (Yet another materials data base) addresses the need to provide thermophysical properties of liquid metals and molten salts in an easily accessible manner. Mathematical relat…
A continuous multiphase model for liquid metal batteries
Omar E. Godinez-Brizuela, Carolina Duczek, Norbert Weber +1
Liquid metal batteries (LMBs) are a promising alternative for large-scale stationary energy storage for renewable applications. Using high-abundance electrode materials such as Sod…
Simulation of potential and species distribution in a Li||Bi liquid metal battery using coupled meshes
Carolina Duczek, Norbert Weber, Omar E. Godinez-Brizuela +1
In this work a 1D finite volume based model using coupled meshes is introduced to capture potential and species distribution throughout the discharge process in a lithium bismuth l…
Layer coupling between solutal and thermal convection in liquid metal batteries
Paolo Personnettaz, Tanja Sophia Klopper, Norbert Weber +1
For longer than one decade, liquid metal batteries (LMBs) are developed with the primary aim to provide economic stationary energy storage. Featuring two liquid metal electrodes se…
Transient behaviour of electrovortex flow in a cylindrical container
Ke Liu, Frank Stefani, Norbert Weber +2
This study is a continuation of the combined experimental and numerical investigation [1] of the flow of the eutectic GaInSn alloy inside a cylindrical vessel exposed to a constant…
Cell voltage model for Li-Bi liquid metal batteries
Norbert Weber, Carolina Duczek, Gerrit M. Horstmann +5
Lithium-bismuth bimetallic cells are amongst the best explored liquid metal batteries. A simple and fast quasi-one-dimensional cell voltage model for such devices is presented. The…
Self-discharge mitigation in a liquid metal displacement battery
Kashif Mushtaq, Ji Zhao, Norbert Weber +2
Recently, a disruptive idea was reported about the discovery of a new type of battery named Liquid Displacement Battery (LDB) comprising liquid metal electrodes and molten salt ele…
Anode-metal drop formation and detachment mechanisms in liquid metal batteries
Sabrina Bénard, Norbert Weber, Gerrit Maik Horstmann +2
We study numerically localised short circuits in Li||Bi liquid metal batteries. In the prototype of a classical, three liquid-layer system, we assume a perceptible local deformatio…
Conductivity influence on interfacial waves in liquid metal batteries and related two-layer systems
Tom Weier, Ilmars Grants, Gerrit Maik Horstmann +5
Fluid flows in liquid metal batteries can be generated by a number of effects. We start with a short overview of different driving mechanisms and then address questions specific to…
Effects of current distribution on mass transport in the positive electrode of a liquid metal battery
Paolo Personnettaz, Steffen Landgraf, Michael Nimtz +2
Liquid metal electrodes are one of the key components of different electrical energy storage technologies. The understanding of transport phenomena in liquid electrodes is mandator…
Thermal neutron radiography of a passive proton exchange membrane fuel cell for portable hydrogen energy systems
Antonio M. Chaparro, P. Ferreira-Aparicio, M. Antonia Folgado +3
A proton exchange membrane fuel cell (PEMFC) for low power and portable applications is studied with thermal neutron radiography. The PEMFC operates under full passive conditions,…
Modeling discontinuous potential distributions using the finite volume method, and application to liquid metal batteries
Norbert Weber, Steffen Landgraf, Kashif Mushtaq +5
The electrical potential in a battery jumps at each electrode-electrolyte interface. We present a model for computing three-dimensional current and potential distributions, which a…
Electromagnetically driven convection suitable for mass transfer enhancement in liquid metal batteries
Norbert Weber, Michael Nimtz, Paolo Personnettaz +2
Liquid metal batteries (LMBs) were recently proposed as cheap large scale energy storage. Such devices are urgently required for balancing highly fluctuating renewable energy sourc…
Competing forces in liquid metal electrodes and batteries
Rakan F. Ashour, Douglas H. Kelley, Alejandro Salas +3
Liquid metal batteries are proposed for low-cost grid scale energy storage. During their operation, solid intermetallic phases often form in the cathode and are known to limit the…
Steady state detection for computational fluid dynamics
Martin Boesler, Norbert Weber
Large parameter studies of fluid dynamic instabilities can crucially be simplified, if the user does not need to specify the simulation time. For this purpose, a steady state detec…
Coupling and stability of interfacial waves in liquid metal batteries
Gerrit Maik Horstmann, Norbert Weber, Tom Weier
We investigate the interfacial wave coupling dynamics in liquid metal batteries and their effects to the battery's operation safety. Similar to aluminum reduction cells, liquid met…
Electro-vortex flow simulation using coupled meshes
Norbert Weber, Pascal Beckstein, Vladimir Galindo +2
A numerical model for simulating electro-vortical flows in OpenFOAM is developed. Electric potential and current are solved in coupled solid-liquid conductors by a parent-child mes…
Metal pad roll instability in liquid metal batteries
Norbert Weber, Pascal Beckstein, Vladimir Galindo +4
The increasing deployment of renewable energies requires three fundamental changes to the electric grid: more transmission lines, a flexibilisation of the demand and grid scale ene…
The Tayler instability at low magnetic Prandtl numbers: Chiral symmetry breaking and synchronizable helicity oscillations
F. Stefani, V. Galindo, A. Giesecke +2
The current-driven, kink-type Tayler instability (TI) is a key ingredient of the Tayler-Spruit dynamo model for the generation of stellar magnetic fields, but is also discussed as…
The Tayler instability at low magnetic Prandtl numbers: between chiral symmetry breaking and helicity oscillations
Norbert Weber, Vladimir Galindo, Frank Stefani +1
The Tayler instability is a kink-type, current driven instability that plays an important role in plasma physics but might also be relevant in liquid metal applications with high e…
The influence of current collectors on Tayler instability and electro-vortex flows in liquid metal batteries
N. Weber, V. Galindo, J. Priede +2
The Tayler instability is a kink-type flow instability which occurs when the electrical current through a conducting fluid exceeds a certain critical value. Originally studied in t…
Current-driven flow instabilities in large-scale liquid metal batteries, and how to tame them
Norbert Weber, Vladimir Galindo, Frank Stefani +1
The use of liquid metal batteries is considered as one promising option for electric grid stabilisation. While large versions of such batteries are preferred in view of the economi…
Numerical simulation of the Tayler instability in liquid metals
Norbert Weber, Vladimir Galindo, Frank Stefani +2
The electrical current through an incompressible, viscous and resistive liquid conductor produces an azimuthal magnetic field that becomes unstable when the corresponding Hartmann…