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http://dx.doi.org/10.7316/KHNES.2013.24.1.084

Study on the Behaivor of Bubbles in Array Type Flow Channels  

Jung, Youngguan (Department of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.24, no.1, 2013 , pp. 84-90 More about this Journal
Abstract
The hydrogen or oxygen gas producted by electrolysis become many bubbles in the electrolyte, but exact data on the behavior of these bubbles in the separator of an electrolysis stack didn't become known. In this study, the flow visualization experiment on the behavior of bubbles in the flow pattern of the array type separator is performed by using of a visible alkaline electrolysis stack and a stereoscopic microscope. As the results, a fine size bubbles adhered to the surface of the flow pattern grow to large sized bubbles until each bubble's buoyance is lager than the sum of external force and weight. And then the large bubbles flow into the upper area of the separator. Bubbles adhered to the surface of the vertical flow pattern grow quickly than them adhered to the surface of the horizontal flow pattern. Also, he electrolysis efficiency is declined because many multi-size bubbles occupied the wide volume in the flow pattern.
Keywords
Halkali; electrolysis; array type flow pattern; separator; hydrogen; bubble; behavior; flow visualization;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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