Experimental Study on the Emission Characteristics of Diesel, GTL, and their Blends with Biodiesel in a Diesel Engine

디젤엔진에서 디젤, GTL, 바이오디젤의 혼합유의 배기배출물 특성에 관한 실험적 연구

  • Received : 2009.11.20
  • Accepted : 2009.12.21
  • Published : 2010.07.01

Abstract

An experimental study was carried out to investigate the emission characteristics for various alternative fuels in a 2.0 liter 4-cylinder turbo-charged diesel engine. The conventional diesel fuel, neat GTL (Gas to Liquid), blends of diesel and biodiesel(BD20), and blends of GTL and biodiesel(G+BD20 and G+BD40) were applied, and their emission characteristics were compared at various steady-state engine operating conditions. A noticeable reduction of exhaust emissions compared to conventional diesel fuel, except for NOx emission, was observed for G+BD40, where there is a maximum 30% averaged reduction for gaseous emissions (THC and CO) and 70% for PM mass concentrations. When comparing PM size distributions for biodiesel blended fuels, the PM number concentration in accumulation mode, where the diameter of PM is greater than 50 nm, decreased due to additional oxygen content in the biodiesel fuel; in nucleation mode, where the diameter of PM is less than 50nm, there was a slight increase or decrease in the PM number concentration depending on the amount of oxygen available in the combustion chamber.

Keywords

References

  1. J. Czerwinski, Y. Zimmerli, T. Neubert, A. Heitzer and M. Kasper, "Injection, Combustion and (Nano) Particle Emissions of a Modern HD-Diesel Engine with GTL, RME & ROR," SAE 2007-01-2015, 2007.
  2. N. Uchida, H. Hirabayashi, I. Sakata, K. Kitano, H. Yoshida and N. Okabe, "Diesel Engine Emissions and Performance Optimization for Neat GTL Fuel," SAE 2008-01-1405, 2008.
  3. Y. G. Lee, G. F. Moon, K. N. Choi, D. S. Jeong, B. J. Kim and K. O. Cha, "Emission Characteristics of GTL (Gas to liquid) Fuel in Diesel Engine," Transactions of KSAE, Vol.16, No.5, pp.84-91, 2008.
  4. S. C. Gwoak, C. Y. Seo, D. I. Kang, J. M. Park, Y. S. Yim, C. S. Hwan, M. D. Eom, J. C. Kim, Y. J. Lee, Y. D. Pyo, C. S. Jung and E. J. Jang, "The Characteristics of Exhaust Gas Emissions with GTL Fuel," Transactions of KSAE, Vol.15, No.6, pp.17-22, 2007.
  5. M. Lapuerta, J. Rodriguez-Fernandez and J. R. Agudelo, "Diesel Particulate Emissions form Used Cooking Oil Biodiesel," Bioresource Technology, Vol.99, pp.731-740, 2008. https://doi.org/10.1016/j.biortech.2007.01.033
  6. R. A. Candeia, M. C. D. Silva, J. R. Carvalho Filho, M. G. A. Brasilino, T. C. Bicudo and I. M. G. Santos, "Influence of Soybean Biodiesel Content on Basic Properties of Biodiesel-diesel Blends," Fuel, Vol.88, pp.738-743, 2009. https://doi.org/10.1016/j.fuel.2008.10.015
  7. M. Lapuerta, O. Armas and J. Rodriguez- Fernandez, "Effect of Biodiesel Fuels on Diesel Engine Emission Emissions," Progress in Energy and Combustion Science, Vol.34, pp.198-223, 2008. https://doi.org/10.1016/j.pecs.2007.07.001
  8. A. K. Agarwal, "Biofuels (Alcohols and Biodiesel) Applications as Fuels for Internal Combustion Engines," Progress in Energy and Combustion Science, Vol.33, pp.233-271, 2007. https://doi.org/10.1016/j.pecs.2006.08.003
  9. X. Li, Z. Huang, J. Wang and W. Zhang, "Particle Size Distribution from a GTL Engine," Science of the Total Environment, Vol.382, pp.295-303, 2007. https://doi.org/10.1016/j.scitotenv.2007.04.032
  10. W. Liu, Z. Huang, J. Wang, X. Qiao and J. Hou, "Effects of Dimethoxy Methane Blended with Gas-To-Liquids on Particulate Matter Emissions from a Compression-Ignition Engine," Energy & Fuels, Vol.22, pp.2307-2313, 2008. https://doi.org/10.1021/ef700735c
  11. F. Wu, J. Wang, W. Chen and S. Shuai, "A Study on Emission Performances of a Diesel Engine Fueled with Five Typical Methyl Ester Biodiesels," Atmospheric Envrionments, pp.1481-1485, 2009. https://doi.org/10.1016/j.atmosenv.2008.12.007