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首页> 外文期刊>Journal of Applied Electrochemistry >Influence of an electrochemically generated gas phase on pressure drop in a three-dimensional electrode and an inert bed
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Influence of an electrochemically generated gas phase on pressure drop in a three-dimensional electrode and an inert bed

机译：电化学产生的气相对三维电极和惰性床中压降的影响

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The influence of an electrochemically generated gas phase on the pressure drop in a three-dimensional electrode and an inert bed has been investigated. The electrode was composed of silvered glass particles, whereas the inert bed was composed of glass particles of the same diameter. During water electrolysis smaller gas bubbles are generated than by introducing gas into the system by means of a fluid distributor. Electrochemically generated bubbles with the liquid phase circulate upward through the electrode and the inert bed. The pressure drop for a monophase fluid was measured, as well as the change of pressure drop with time in the electrode and the inert bed for two-phase flow of fluid through an electrochemical cell. The steady and unsteady periods of the change of pressure drop have been discussed. Experiments were carried out at different electrolyte velocities and for different current densities. Higher electrolyte velocities cause an increase in the pressure drop in both beds. Also, increased current density causes an increase in gas evolution intensity at the electrode thereby increasing the pressure drop in both beds. A mathematical model describing the change of pressure drop with time has been proposed. The proposed model showed good agreement with experimental results as well as the results from the literature. [References: 14]
机译：已经研究了电化学产生的气相对三维电极和惰性床中压降的影响。电极由镀银的玻璃颗粒组成，而惰性床由相同直径的玻璃颗粒组成。与通过流体分配器将气体引入系统相比，在水电解过程中会产生较小的气泡。电化学产生的带有气泡的气泡向上循环通过电极和惰性床。测量了单相流体的压降，以及电极和惰性床中流体通过电化学池的两相流动时压降随时间的变化。讨论了压降变化的稳定和不稳定时期。在不同的电解液速度和不同的电流密度下进行了实验。较高的电解质速度会导致两张床的压降增加。而且，电流密度的增加导致电极处气体放出强度的增加，从而增加了两个床中的压降。提出了描述压降随时间变化的数学模型。所提出的模型与实验结果以及来自文献的结果显示出良好的一致性。 [参考：14]

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