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http://dx.doi.org/10.7316/KHNES.2013.24.5.461

A Composition and Basis Experiment of Single Cylinder Low Speed Diesel Engine for Atkinson Cycle Materialization  

Jang, Jtaeik (Department of Aeronautical & Mechanical Design Engineering, Korea National University of Transportation)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.24, no.5, 2013 , pp. 461-466 More about this Journal
Abstract
In this research, the diesel cycle was thermodynamically interpreted to evaluate the possibility of high efficiency by converting diesel engine to the atkinson cycle, and general cycle features were analyzed after comparing these two cycles. That an experimental single cylinder and a long stroke diesel-atkinson engine, of which S/B ratio was more than 3, were manufactured. After evaluating the engine through basic experiments, a diesel engine was converted into the atkinson cycle by constituent VCR (variable compression ratio) device and VVT (variable valve timing) system. The experimental method was to observe compression work reduction effects due to low compression effects from delayed intake valve closing of the early stage atkinson engine. The result, the possibility of increasing compression ratio about each engine load was confirmation by constructing compensate expansion-compression ratio in accordance with the delayed intake valve close.
Keywords
Atkinson cycle; Long-Stroke; Slow speed diesel engine; Variable valve timing; Variable compression ratio;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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1 T. Goto, et al., "Development of V6 Miller Cycle Gasoline Engine", SAE 940198, 1994.
2 C. M. Chung, J. T. Lee, J. W. Cho, "Trends in Technical & Development of Miller Cycle for Gasoline Engine", KSAE, Vol. 17 no. 1. 1995.
3 Mitsuo Hitomi, et al., "Mechannism of Improving Fuel Efficiency by Miller Cycle and Its Future Prospect", SAE 951055, 1995.
4 Y. J. Jeong, T. I. Jang, J. T. Lee, "An Enhancement of Thermal Efficiency Using the Atkinson Cycle in the Marine Diesel Engine with a Long Stroke", Proceedings of the KSAE Springtime Conference II, PP. 225-231. 2001.
5 T. I. Jang, "A Study on the Problem-Solving Method and Thermal Efficiency Properties at the Time of High Expansion Realization in a 4-Cycle Diesel Engine", kosme, Vol. 33 no. 6, pp. 51-58. 2009.   과학기술학회마을   DOI   ScienceOn
6 B&W Diesel, "Marine Propulsion Engines, Propulsion Systems, Marine Gen Sets", no. 24231, 1999.
7 T. I. Jang, "A Study on the Theory Analysis and Engine Test Performance by a High Expansion Diesel Engine into Intake-Exhaust Consideration", kosme, Vol. 32 no. 8, pp. 55-60. 2008.   과학기술학회마을   DOI   ScienceOn
8 J. T. Lee, K. J. Lee, J. G. Lee "A Study on the Application of the Lean Boosting in a Hydrogenfueled Engine with the SI and the External Mixture", Trans. of the Korean Hydrogen and New Energy Society, Vol. 24, No. 2, pp. 136-141, 2013.   DOI   ScienceOn