Browse > Article

The Realization of High Performance in a Hydrogen-Fueled Engine with External Mixture by Retarding Valve Timing and Super Charging  

Lee, Kwang-Ju (Grad. School of Sungkyunkwan Univ.)
Hur, Sang-Hoon (Grad. School of Sungkyunkwan Univ.)
Lee, Jong-Tae (School of Mechanical Engineering, Sungkyunkwan Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.6, 2009 , pp. 464-470 More about this Journal
Abstract
In order to analysis the possibility of high expansion and performance without backfire in a hydrogenfueled engine using external mixture injection, combustion characteristics and performance enhancement were analyzed in terms of retarding valve timing and increasing the boosting pressure. As the results, it was found that thermal efficiency increased by retarding intake valve timing with the same level of supplied energy is over 6.6% by the effect of high expansion including effect of combustion enhancement due to supercharging. It was also shown that the achievement of high power (equal to that of a gasoline engine), low brake specific fuel consumption and low emission (NOx of less than 16 ppm) without backfire in a hydrogen-fueled engine is possible around a boosting pressure of 1.5 bar, intake valve opening time of TDC and $\Phi$=0.35 in fuel-air equivalence ratio.
Keywords
Retarded valve time; Supercharging; $H_2$ engine with external mixture; High expansion; High performance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 J. M. Kim, Y. T. Kim, J. T. Lee, S. Y. lee, 'Performance characteristics of Hydrogen Fueled Engine with the Direct Injection and Spark Ignition System', SAE 952488, pp. 162-175, 1995
2 T. C. Huynh, J. K. Kang, K. C. Noh, J. T. Lee, 'A Study on Performance and Combustion Characteristics for Valve Overlap Period Variation in a Hydrogen-fueled Engine with External Mixture', KSAE 07-S0304, pp. 1936-1941, 2007
3 J. K. Kang, T. C. Huynh, K. C. Noh, J. T. Lee, J. H. Lee, 'A Development and Basic Characteristics of MCVVT Research Hydrogen Engine for Practical Use of External Mixture Hydrogen-Fueled Engine', Trans. of the Korean Hydrogen and New Energy Society, Vol. 17, No. 3, pp. 255-262, 2006   과학기술학회마을
4 J. T. Lee, Y. Y. Kim, C. W. Lee, 'An Investigation of a Cause of Backfire and its Control due to Crevice Volumes in a Hydrogen Fueled Engine', ASME, ICE-Vol. 34-3, pp. 23-30, 2000   DOI   ScienceOn
5 K. J. Lee, T. C. Huynh, J. K. Kang, J. T. Lee, 'Back-Fire Control of a Hydrogen-Fueled Engine with External Mixture by Using Intake Valve Opening Timing', KSAE 08-S0098, pp. 600-605, 2008
6 Y. Y. Kim, T. H. Ryu, J. T. Lee, 'Backfire Occurrence by Abnormal Electric Discharge In Hydrogen Fueled engine', Trans. of the Korea Hydrogen Energy Society, Vol. 13, No. 1, pp. 65-73, 2002
7 K. Koyanagi, M. Hiruma, S. Furuhama, 'Study on Mechanism of Backfir in Hydrogen Engines', SAE 942035, 1994