Free piston engine generator: Technology review and an experimental evaluation with hydrogen fuel |
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Authors: | Y Woo Y J Lee |
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Institution: | 1. Department of Energy Efficiency, KIER, 152 Gajeong-ro, Yuseong-gu, Daejeon, 305-343, Korea
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Abstract: | Free piston engine generators which utilize a free piston engine and a linear generator are under investigation by a number of research groups around the world. Free piston engines give power output in a more efficient way when compared to conventional crankshaft engines, because the former do not have a crank mechanism which brings about additional mechanical loss. However, for the reliable and stable operation of the free piston engine generators, it is required to have a viable control system to address the uncertainty of piston motion. In this paper, most of the successful free piston engine generator developments were reviewed and a recent experimental result on a prototype free piston system was also presented with regard to engine performance with different mixture preparation strategies. |
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