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http://dx.doi.org/10.15435/JILASSKR.2018.23.4.169

Effect of Vortex Generator in Intake Pipe on the Moisture Concentration Distributions and Combustion Performance in a CI Engine  

Jeong, Seok Hoon (국립공주대학교 기계공학과 대학원)
Suh, Hyun Kyu (국립공주대학교 기계자동차공학부)
Publication Information
Journal of ILASS-Korea / v.23, no.4, 2018 , pp. 169-174 More about this Journal
Abstract
In this work, optimization of blade shape for the improvement of mixture formation and vortex of intake port was performed by numerically, and the combustion performance of CI engine with optimized blade shape was investigated. To achieve this, 3 types of blade shape were studied under the different air flow mass conditions and the numerical results were investigated in terms of humidification water, moisture concentration, and velocity distributions. Evaporated liquid mass was also compared under various test conditions to reveal the turbulent intensity in an intake port. It was observed that the optimized blade shape can improve the humidification water, moisture concentration, and velocity distributions of intake port inside. The evaporated liquid mass was also increased under the conditions with blade. Especially, low NOx emissions was observed with optimized blade condition.
Keywords
Blade shape; Moisture concentration; Evaporated liquid mass; Turbulence intensity; Velocity field;
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  • Reference
1 C. S. Bae, Y. J. Jung, "Fuel Economy Improvement of Automotive Engines", Auto Journal of KSAE, Vol. 34, No. 1, 2012, pp. 39-45.
2 S. S. Moon, "Engine Research Trend in Japan : Challenges to Achieve 50% Engine Thermal Efficiency", Auto Journal of KSAE, Vol. 36, No. 7, 2014, pp. 14-18.
3 G. S. Cha, C. H. Oh, "Impact of oxygen content on particulates emission in Gasoline Direct Injection Engine", KSAE Annual Conference Proceedings, 2012, pp. 460-464.
4 T. M. Kim, S. K. Park, H. C. Oh, H. W. Lee, M. S. Sohn, K. H. Lee, "Characteristics of Pre -. Ignition on Different Lubricant and Fuel in Turbo-charged Direct Injection Spark Ignition Engines", KSAE Annual Conference Proceedings, 2016, pp. 38-38.
5 G. S. Jeong, C. H. Jeon, Y. J. Jang, "A Study of the Combustion Characteristics Using a 2-valve SI Optically Acessible Engine with SCV," Trans. Korean Soc. Mech. Eng. B, Vol. 25, No. 12, 2001, pp. 1692-1701.   DOI
6 J. W. Chung, K. H. Lee, C. S. Lee, "A Study on the Effects of Swirl Flow Generated by SCV on the Combustion Characteristics of the D.I. Diesel Engine", KSAE Annual Conference Proceedings, Vol. 10, No. 2, 2002, pp. 31-39.
7 D. R. Rhim, S. K. Lee, M. J. Kim, J. W. Chung, W. Kang, "Swirl Flow Characteristics in a Diesel Engine with Intake Port Design", Proceedings of the KFMA Annual Meeting, 2007, pp. 313-318.
8 M. Baratta., D. Misul., E. Spessa., L. Viglione., G. Carpegna., F. Perna., "Experimental and numerical approaches for the quantification of tumble intensity in high-performance SI engines", Energy Conversion and Management, 2017, pp. 435-451.
9 K. H. Lee., Y. T. Han., H. Y. Jeong., Y. C. Leem., "A Study on the Effects of Intake Port Geometry on In- Cylinder Swirl Flow Field in a Small D.I. Diesel Engine", KSAE Annual Conference Proceedings, Vol. 12, No. 6, 2004, pp. 38-45.
10 S.H. Min, H. K. Suh, "Effect of operating conditions on the combustion and emission characteristics in small HSDI CI engine", Korean Soc. Mech. Technol, Vol. 17, No. 4, 2015, pp. 699-706.   DOI
11 D. K. Kang, "Development of Automotive Technologies in Europe", Auto Journal of KSAE, Vol. 35, No. 6, 2013, pp. 60-65.
12 S. J. Choi, C. H. Jeon, Y. J. Jang, "Lean Combustion Characteristics in a S. I Engine with SCV by Operating Conditions," Trans. Korean Soc. Mech. Eng. B, Vol. 24, No. 2, 2000, pp. 161-168.   DOI