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首页> 外文期刊>Russian journal of electrochemistry >Mass transfer enhancement for mesh electrode in a tubular electrochemical reactor using experimental and numerical simulation method
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Mass transfer enhancement for mesh electrode in a tubular electrochemical reactor using experimental and numerical simulation method

机译：实验和数值模拟方法增强管状电化学反应器中网状电极的传质

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摘要

The effect of electrode configuration on mass transfer rate in a tubular electrochemical reactor was investigated with the limiting-current method. The expression of mass transfer enhancement factor was derived from the dimensionless equations for different electrode configurations. Furthermore, the local velocity distribution in the tubular electrochemical reactor was simulated by computational fluid dynamics technology. These simulation results explained the reason of mass transfer enhancement for mesh electrode: the rotation of the solution is induced by high rates of shear, and small eddies are formed. The local velocity distributions in bulk for X-dimension get flatter because of the lateral momentum transfer. Due to the impact and obstruction of electrode holes, the turbulence of the electrolyte gets drastic and the mass transfer performance in the tubular electrochemical reactor is improved.
机译：用极限电流法研究了电极结构对管状电化学反应器传质速率的影响。传质增强因子的表达是根据不同电极配置的无量纲方程得出的。此外，通过计算流体动力学技术模拟了管状电化学反应器中的局部速度分布。这些模拟结果解释了网状电极传质增强的原因：溶液的旋转是由高剪切速率引起的，并且形成了小的涡流。由于横向动量传递，X维度的局部速度分布变得更平坦。由于电极孔的冲击和阻塞，电解质的湍流变得剧烈，并且管状电化学反应器中的传质性能得到改善。

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