Abstract
A three-dimensional, two-phase, multi-component mixture model in conjunction with a finite-volume-based computational fluid dynamics technique is applied to simulate the operation of membraneless fuel cell with Y-shape channel. Hydrogen peroxide is employed both as fuel and oxidant. All transport phenomena occurring in the fuel cell such as fluid flow, mass transfer, electrochemical kinetics and charge transport are considered in this model. The oxygen gas, which is a product in the anode electrode, is assumed to be insoluble. The results show that the presence of gas phase acts to prevent the processes of reactant supply and product removal. Besides, a secondary flow is induced due to the transportation of the gas phase, which drifts from the bottom to the top of the channel and results in serious fuel crossing phenomenon.
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