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A Study for Development of Compact Powerpack used Hydrogen  

Kim, Nam-Yuer (Graduate School of Mechanical & Automotive Engineering, Ulsan University)
Kim, Gang-Chul (Green Transportation Research Group, KIER)
Lim, Ock-Taeck (School of Mechanical & Automotive Engineering, Ulsan University)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.21, no.4, 2010 , pp. 321-327 More about this Journal
Abstract
Current rechargeable battery cannot provide high energy density and the operational durations required. But linear engine/generators provide high energy density for portable power applications because fuel is more high density. In this paper, we suggest that basic design of powerpack using linear engine for assisting power output. Efficiency is relatively high because linear engine don't have crank mechanism compared with rotary engine. We made prototype engine and had experiments to know moving characteristic about the Linear Engine. It was possible to operate velocity at 50 Hz at the firing and pressure in cylinder was 16bar.
Keywords
Powerpack; Liear engine; Linear generator; Free piston; Hydrogen;
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