The Behaviour of Gas Bubble during Rest Period of Pulse-Activated Electrolysis Hydrogen Production

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Author list: Vilasmongkolchai T., Songprakorp R., Sudaprasert K.

Publisher: EDP Sciences

Publication year: 2016

Volume number: 77

ISSN: 2261-236X

eISSN: 2261-236X

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84993969538&doi=10.1051%2fmatecconf%2f20167714001&partnerID=40&md5=03627da6540e3f05da1104ec0c132bd8

Languages: English-Great Britain (EN-GB)

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Abstract

The pulse-activated electrolyzer has been developed and used for several years. With the capability of enhancing the efficiency of an electrolytic process and easy operation, this technique becomes an interesting process for hydrogen production. Unfortunately during electrolytic reaction, the creation of bubbles becomes a reaction inhibitor and consumes energy. This paper aims to study the proper rest period that gives the bubble free rise-off the solution without additional bubble created. The mathematical method and acoustic emission method were used for investigation of bubble's rising velocity. The result shows that the variation of rest period on pulse-activated makes production efficiency enhanced. For the practicality of use and set control parameters, duty cycle and frequency were demonstrated instead of rest period. ฉ The Authors, published by EDP Sciences, 2016.

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