Modelling of gas evolving electrolysis cells. I. The gas voidage problem
Modelling of gas evolving electrolysis cells. I. The gas voidage problem
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气体释放电解池的建模。
DOI：
10.1007/bf01059293
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
M. Kuhn
中科院分区：
文献类型：
--
作者：
G. Kreysa;M. Kuhn
对文献中气液混合物的实验气体空隙率数据的严格审查得出的结果是，这些数据不能用已知的气含率理论来解释。根据电解质溶液中气泡聚结受阻的经验，通过引入聚结屏障模型，推导出了计算气泡空隙率与表观气速的关系式。实验研究证实了理论预测的极限气体空隙率的存在，这是每个气体-电解质组合的特征量。
A critical review of experimental gas voidage data for gas—liquid mixtures available in the literature yields the result that these data cannot be explained by known theories of the gas hold-up. Based on the empirical experience that bubble coalescence is hindered in electrolyte solutions, new equations are derived for the calculation of the gas voidage as a function of the superficial gas velocity by introducing a coalescence barrier model. Experimental investigations confirm the theoretical prediction of the existence of a limiting gas voidage which is a characteristic quantity of each gas—electrolyte combination.