Browse > Article
http://dx.doi.org/10.3795/KSME-B.2012.36.2.217

Exhaust Gas Recirculation System Applied to 56 kW Off-Road Vehicle to Satisfy the Tier 4 Interim Emission Regulation  

Kang, Jeong-Ho (Green Car Powertrain R&D Division, KATECH)
Han, Joon-Sup (Green Car Powertrain R&D Division, KATECH)
Chung, Jae-Woo (Green Car Powertrain R&D Division, KATECH)
Jeong, Gun-Woo (Green Car Powertrain R&D Division, KATECH)
Cho, Gyu-Baek (Green Powertrain R&D Center, KIMM)
Lim, Jung-Ho (Dept. of R&D Center, KUKJE Machinery Company)
Pyo, Su-Kang (Dept. of R&D Center, KUKJE Machinery Company)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.2, 2012 , pp. 217-224 More about this Journal
Abstract
In general, transportation sources include both on-road vehicles and off-road equipment. Off-road vehicles have usually used diesel engines, which have the disadvantage of high NOx emission. Common rail direct injection (CRDI) and after-treatment systems have been applied to meet the exhaust gas emission regulations for diesel vehicles. In the present, agricultural machinery has satisfied the Tier 3 emission regulations by using waste gate turbocharger (WGT) and internal exhaust gas recirculation (EGR). In this paper, the combustion and emission characteristics of an EGR system applied to a 56kW off-road vehicle in non-road transient cycle (NRTC) mode have been investigated. The EGR map was made from foundation experiments determining the EGR duty for all engine operating conditions, and then this map was applied to the NRTC mode. Consequently, the NOx emission was reduced by the EGR system, and the Tier 4 interim emission regulations were satisfied by using both the EGR system and an after-treatment system.
Keywords
Off-road Vehicle; Agricultural Machinery; Exhaust Gas Recirculation; Non Road Transient Cycle; Wastegate Turbocharger;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Han, J., Kang, J., Chung, J., Jeong, G., Cho, G., Lim, J. and Seol, D., 2011, "A Study on the EGR System applied to 56kW Off-Road Vehicle," Proceeding of 2011 KSAE conference, 2011-0205.
2 Kang, J., Nam, D., Jeong, G., Cho, K. and Jang, Y., 2010, "A Study on the Application of EGR System to Decrease the NOx Emission of Off-Road Vehicle Diesel Engine," Proceeding of 2010 KSAE conference, KSAE 10 - B0089 (1).
3 Lim, J.-H., Jung, S.-W., Lee, T.-W., Kim, J.-C., Seo, C.-Y., Ryu, J.-H., Hwang, J.-W., Kim, S.-M. and Eom, D.-S., 2009, "A Study on Calculation of Air Pollutants Emission Factors for Construction Equipment," J. KOSAE Vol. 25, No. 3, pp. 188-195.   DOI
4 Shin, M.-K., Kim, H.-J., Jang, Y.-K. and Hong, J.-H., 2003, "Annual Trends of Air Pollution Emission from Construction and Agricultural Equipments," J. KOSAE Vol. 19, No. 6, pp. 805-810.
5 Jeong, Y. and Kim, H., 2008, "Trend of Diesel Particulate Filter Trap Technology," J. KOSAE Vol. 30, No. 1, pp. 55-61.
6 Langridge, S. and Fessler, H., 2002, "Strategies for High EGR Rates in a Diesel Engine," SAE VOl. -, NO. 1698, pp. 141-160.
7 Dronniou, N. and Higelin, P., 2005, "Combination of High EGR Rates and Multiple Injection Strategies to Reduce Pollutant Emissions," SAE 2005-01-3726.
8 Niemi, S. A., Lauren, M. J. and Murtonen, T. T., 2002, "Effect of Waste-Gate Turbocharging on the Exhaust Particulate Matter of an Off-Road Diesel Engine," SAE 2002-01-2159.
9 Volvo CE, Tier 4 North American Emission Regulations, May 2010.