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A Study on the Combustion Stabilization and Performance Improvement in the Free-piston Hydrogen Fueled Engine  

Noh, K.C. (School of Mechanical Engineering, Sungkyunkwan Univ.)
Yoon, J.S. (Graduate School of Sungkyunkwan Univ.)
Kim, K.M. (Graduate School of Sungkyunkwan Univ.)
Park, S.W. (Graduate School of Sungkyunkwan Univ.)
Lee, J.T. (School of Mechanical Engineering, Sungkyunkwan Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.17, no.2, 2006 , pp. 227-233 More about this Journal
Abstract
A free-piston hydrogen fueled engine is considered as one of the next power systems which is able to obtain high efficiency and low emission, simultaneously. In this study, in order to ensure the possibility as the next generation power system, the combustion characteristics and the performance of the free-piston hydrogen fueled engine are analyzed by using the linear RICEM for the change of injection pressure and equivalence ratio. As the results, in-cylinder maximum pressure is shown at injection pressure $P_{inj}$=6bar. Backfire phenomenon is not observed under experimental condition and knock occurs over ${\Phi}=0.8$. The thermal efficiency is the highest at injection pressure, $P_{inj}$=6bar and equivalence ratio, ${\Phi}=0.7$, respectively.
Keywords
Free-piston hydrogen fueled engine; Linear RICEM; Backfire; Knocking; Piston crevice volume;
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  • Reference
1 Norman H. Beachley and Frank J. Fronczak, 'Design of a Free-Piston Engine-Pump', SAE paper 921740, 1992
2 P. V. Blarigan, N. Pradiso and S. Goldborough, 'Homogeneous Charge Compression Ignition with Free Piston: A New Approach to Ideal 000 Cycle Performance', SAE paper 980204, 1998
3 Peter A. J. Achten, 'A Review of Free Piston Engine Concepts', SAE paper 941776, 1994
4 K. M. Kim, J. H. Lee, and J. T. Lee, 'A Basic Study on the Combustion Characteristics of Linear Hydrogen Power System', Proceedings of the KHNES Annual Spring Meeting 2005, Vol. 1, 2005, pp. 88-94
5 Y. Y. Kim, T. H. Ryu, and J. T. Lee, 'Backfire Occurrence by Abnormal Electric Discharge in Hydrogen Fueled Engine', Trans of the KHES, Vol. 13, No. 1, 2002, pp. 65-73
6 K. C. Noh, K. M Kim, S. W. Park and J. T. Lee, 'An Investigation on Backfire Phenomenon of Free-Piston Hydrogen-Fueled Engine', Proceedings of the KHNES Annual Autumn Meeting 2005, Vol. 1, 2005, pp. 161-166