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http://dx.doi.org/10.7316/KHNES.2017.28.6.601

A Study on Performance Characteristic and Safety of Alkaline Water Electrolysis System  

PARK, SOON-AE (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
LEE, EUN-KYUNG (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
LEE, JUNG-WOON (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
LEE, SEUNG-KUK (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
MOON, JONG-SAM (Institute of Gas Safety R&D, Korea Gas Safety Corporation)
KIM, TAE-WAN (JUJINTECH)
CHEON, YOUNG-KI (JUJINTECH)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.28, no.6, 2017 , pp. 601-609 More about this Journal
Abstract
Hydrogen is a clean, endlessly produced energy and it is easy to store and transfer. So, hydrogen is regarded as next generation energy. Among various ways for hydrogen production, the way to produce hydrogen by water electrolysis can effectively respond to fossil fuel's depletion or climate change. As interest in hydrogen has increased, related research has been actively conducted in many countries. In this study, we analyzed the performance characteristics and safety of water electrolysis system. In this study, we analyzed the performance characteristics and safety of water electrolysis system. The items for safety performance evaluation of the water electrolysis system were derived through analysis of international regulations, codes, and standards on hydrogen. Also, a prototype of the overall safety performance evaluation station was designed and developed. The demonstration test was performed with a prototype $10Nm^3/h$ class water electrolysis system that operated stably under various pressure conditions while measuring the stack and system efficiency. At 0.7MPa, the efficiency of the alkaline water electrolysis stack and the system that used in this study was 76.3% and 49.8% respectively. Through the GC analysis in produced $H_2$, the $N_2$ (5,157ppm) and $O_2$ (1,646 ppm) among Ar, $O_2$, $N_2$, CO and $CO_2$ confirmed as main impurities. It can be possible that the result of this study can apply to establish the safety standards for the hydrogen production system by water electrolysis.
Keywords
New and renewable energy; Hydrogen; Water electrolysis; Safety; Purity; Performance; Efficiency;
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Times Cited By KSCI : 1  (Citation Analysis)
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