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Fabrication and Characteristics of 150ℓ Class Hydrogen Tank Using Hydrogen Storage Alloy  

Kang, Kll-Ku (Dong Myung Ltd. Co)
Gang, Sei-Sun (Materials Testing Center, Hanbat National University)
Kwon, Ho-Young (System Safety Design Engineering, Daeduk College)
Lee, Rhim-Youl (Dept. of Materials Science & Engineering Dankook University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.13, no.2, 2002 , pp. 110-118 More about this Journal
Abstract
The hydrogen storage vessel having a good heat conductivity along with a simple structure and a low cost for these alloys was designed and manufactured, and then its characteristic properties were studied in this study. The various parts in hydrogen storage vessel consisted of copper pipes and stainless steel of 250 mesh reached the setting temperature after 4~5 minutes, which indicated that storage vessel had a good heat conductivity that was required in application. And also the storage vessel had a good property of hydrogen transport considering that the reaction time between hydrogen and rare-earth metal alloys in storage vessel was found to be within 10 min at $18^{\circ}C$ under 10 atmospheric pressure. It showed that the average capacity of discharged hydrogen volume was found to be $120{\ell}$ for $MmNi_{4.5}Mn_{0.5}$ under discharging conditions of $40^{\circ}C{\sim}80^{\circ}C$ at a constant flow rate of $5{\ell}$/min. It was found that the optimum discharging temperature for obtaining an appropriate pressure of 3atm was determined to be $60^{\circ}C$ for $MmNi_{4.5}Mn_{0.5}$ hydrogen storage alloy.
Keywords
Hydrogen storage alloy; Hydrogen storage vessel; Misch metal; $MmN_{4.5}Mn_{0.5}$;
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