Showing result: 1 - 10 of 14
Electrochemistry
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A Rechargeable Lithium Battery Model – Charge and Discharge Behavior
The transient charge and discharge performance of a rechargeable Li battery is strongly dependent on the design and choice of materials.
This model allows you to investigate the behavior of a Li-ion cell based on a number of design parameters. The model simulates cell voltage, capacity, current d...
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Copper Deposition in a Trench
This model demonstrates the use of moving meshes in the application of copper electrodeposition on circuit boards. In these environments, the presence of cavities or ‘trenches’ are apparent.
The model makes use of the Nernst-Planck application mode in combination with a Moving Mesh (ALE) appl...
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Current Density Distribution in a Solid Oxide Fuel Cell
This model presents a study of the current density distribution in a solid oxide fuel cell (SOFC).
The model includes the full coupling between the mass balances at the anode and cathode, the momentum balances in the gas channels, the gas flow in the porous electrodes, the balance of the ionic cu...
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Model of a Proton Exchange Membrane Fuel Cell
This example demonstrates modeling of PEM fuel cell with interdigitated flow field design. This implies that a pressure gradient is imposed between the inlet and outlet channel systems and forces convective flow through the porous electrodes via Darcy's Law.
Mass transport assumes Maxwell-Stefan...
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Electroosmotic Flow in a Biochip
Miniature laboratories are required to efficiently analyze the information in human DNA. Such laboratories could facilitate tailor-made diagnoses and treatment of hereditary diseases for each individual.
One problem that arises in these lab-on-a-chip devices lies in the transport of the liquid s...
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Fuel Cell Stack
A key optimization parameter in a fuel cell is the design of the reactant and product channels and inlets and outlets. Good designs require that the electrodes are well fed with a reactant and that products are removed as quickly as possible. A further desire for a good fuel-cell design is that fuel...
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Pacemaker Electrode
This model illustrates the use of COMSOL Multiphysics for the modeling of ionic current distribution problems in electrolytes, in this case human tissue. The problem is exemplified on a pacemaker electrode, which actually consists of two electrodes, a cathode and an anode.
Modelled is the current...
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Current Distribution in a Chlor-Alkali Membrane Cell
The chlor-alkali membrane process is one of the largest processes in industrial electrolysis with production of roughly 40 million metric tons of both chlorine and caustic soda per year. Chlorine’s largest use is in the production of vinyl chloride monomer, which in turn is used for the production...
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Electrochemical Polishing
This example illustrates electrode depletion including two electrodes and an electrolyte. The positive electrode has a protrusion and the model examines how this protrusion and the surrounding electrode material are depleted for some period of time.
The electrode depletion requires a moving boun...
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Electrophoresis in a Channel Junction
This example studies the electrophoretic transport of three charged species diluted in a water solution.
One of the ion pairs is a buffer solution while the third is the species that is to be transported in the field.
The purpose of the model is to show the influence of the geometry on the s...
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