Browse > Article

Combustion and Nano-particulate Emissions Characteristics of a Compression Ignition Engine Fueled with Biodiesel according to EGR Ratio  

Cha, June-Pyo (Graduate School, Hanyang University)
Yoon, Seung-Hyun (Graduate School, Hanyang University)
Lee, Chang-Sik (Department of Mechanical Engineering, Hanyang University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.6, 2010 , pp. 98-104 More about this Journal
Abstract
An experimental investigation was conducted to analyze the effects of EGR ratio on the combustion, exhaust emissions characteristics and size distributions of particulate matter in a single cylinder diesel engine with common-rail injection system fueled with biodiesel derived from soybean. In order to analyze the combustion, exhaust emissions and measurement of size distributions of particulate matter were carried out under various EGR ratio which was varied from 20~60% and the results were compared to those of results without EGR. The experimental results show that ignition delay was extended and maximum value of rate of heat release (ROHR) was decreased according to increasing of EGR ratio. In addition, oxidies of nitrogen ($NO_x$) emissions were reduced but soot emissions were increased under increasing of EGR ratio. However, under higher EGR ratio region, soot was slightly decreased. And then the particulate size distribution shows that high exhaust gas temperature restrain the formation of soluble organic fraction (SOF) which were beyond the accumulation mode (100~300nm) and lead to increase of nuclei mode particles.
Keywords
Biodiesel; Particulate emission; Exhaust gas recirculation; Low temperature combustion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 D. S. Kim and C. S. Lee, "Improved Emission Characteristics of HCCI Engine by Various Premixed Fuels and Cooled-EGR," Fuel, Vol.85, pp.695-704, 2006.   DOI   ScienceOn
2 C. S. Lee, Y. H. Yoon and M. Y. Kim, "Effect of Cooled-EGR on the Characteristics of Performance and Exhaust in a HCCI Diesel Engine," Transactions of KSAE, Vol.13, No.5, pp.35-41, 2005.   과학기술학회마을
3 S. H. Yoon, M. Y. Kim, D. S. Kim, J. H. Lee and C. S. Lee, "Effect of Early Injection Strategy on the Combustion and Emission Characteristics of the Common-rail DI Diesel Engine," Transactions of KSAE, Vol.14, No.4, pp.26-31, 2006.   과학기술학회마을
4 M. P. B. Musculus, T. Lachaux, L. M. Pickett and C. A. Idicheria, "End-of-injection Overmixing and Unburned Hydrocarbon Emissions in Low-temperature-combustion Diesel Engines," SAE 2007-01-0907, 2007.
5 J. Y. Heo, S. H. Yoon, S. W. Park and C. S. Lee, "Effect of EGR Ratio on Combustion and Emission Characteristics in a Single-diesel Engine with Common-rail Direct Injection," KSAE 2009 Annual Conference, KSAE09-A0060, 2009.
6 S. H. Yoon, H. K. Suh and C. S. Lee, "Effect of Spray and EGR Rate on the Combustion and Emission Characteristics of Biodiesel Fuel on a Compression Ignition Engine," Energy & Fuels, Vol.23, pp.1486-1493, 2009.   DOI   ScienceOn
7 M. Sjoberg and J. E. Dec, "An Investigation into Lowest Acceptable Combustion Temperatures for Hydrocarbon Fuels in HCCI Engines," Proc. Comb. Inst. Vol.30, pp.2719-2726, 2005.   DOI   ScienceOn
8 M. Yao, Z. Zheng and H. Liu, "Progress and Recent Trends in Homogeneous Charge Compression Ignition (HCCI) Engines," Progress in Energy and Combustion Science, Vol.35, Issue 5, pp.398-437, 2009.   DOI
9 D. S. Kim, M. Y. Kim and C. S. Lee, "Combustion and Emission Characteristics of a Partial Homogeneous Charge Compression Ignition Engine when Using Two-stage Injection," Combust. Sci. and Tech., Vol.179, pp.531-551, 2007.   DOI   ScienceOn
10 D. B. Kittelson, "Engines and Nanoparticles: A Review," J. Aerosol Sci., Vol.29, No.5/6, pp. 575-588, 1998.
11 K. J. Baumgard and J. H. Johnson, "The Effect of Fuel and Engine Design on Diesel Exhaust Particle Size Distributions," SAE 960131, 1996.