Browse > Article
http://dx.doi.org/10.3795/KSME-B.2012.36.4.371

An Experimental Study of Fuel Economy and Emission Characteristics for a Heavy-Duty DME Bus  

Oh, Yong-Il (Dept. of Mechanical and Automotive Engineering, Ulsan Univ.)
Pyo, Young-Duk (Korea Institute of Energy Research)
Kwon, Ock-Bae (Reseach & Development Center of Korea Gas Corporation)
Beak, Young-Sun (Reseach & Development Center of Korea Gas Corporation)
Cho, Sang-Hyun (Jeonbuk Institute of Automotive Technology)
Lim, Ock-Taeck (Dept. of Mechanical and Automotive Engineering, Ulsan Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.4, 2012 , pp. 371-376 More about this Journal
Abstract
The experimental test was conducted for a heavy-duty DME bus in JE-05 exhaust gas test mode using a chassis dynamometer, exhaust gas analyzers, and a PM measurement system. The heavy-duty DME bus was not equipped with after-treatment systems such as DOC or DPF. The dynamic behavior, emission characteristics, and fuel economy of the bus were investigated with an 8.0-liter, 6-cylinder conventional diesel engine. The results showed that the dynamic behavior in DME mode was almost the same as in diesel mode. However, there was little difference among the two operation modes for $NO_x$ and CO emissions. THC emissions were lower for DME mode than for diesel mode. Also, the amount of PM emissions was remarkably lower than for the diesel mode because DME contains a greater amount of oxygen than diesel. The data showed that $CO_2$ emissions were almost similar in the two modes but fuel economy (calculated using heating value) was lower for DME mode than for diesel mode.
Keywords
DME Bus; JE-05 Exhaust Gas Test Mode; Fuel Economy; Emission Characteristic; Dynamics Behavior;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Sato, Y., Nozaki, S., and Noda, T., 2004, "The Performnce of a Diesel Engine for Light-Duty Truck Using a Jerk-Type, in Line DME Injection System:, SAE Paper, 2004-01-1862.
2 Sato, Y., Lee, S., Takayanagi, T., Suzuki, H., Nakamura, A. Tsuchiya, T., and Toda, K., 2006, "Research and Development of Heavy-Duty Truck Fueled with DMEP - Development and Performance of a DME Engine" JSAE Trans., 37(1), pp. 71-76.
3 Sorenson, S.C. and Mikkelsen, S.-E., 1995, "Performance and Emissions of a 0.273 Liter Direct Injection Diesel Engine Fueled with Neat Dimethyl Ether," SAE Paper, 950064.
4 Kapus, P. and Ofner, H., 1995, "Development of Fuel Injection Equipment and Combustion System for DI Diesels Operated on Dimethyl Ether," SAE Paper, 950062.
5 Sorenson, S. C., 2000, Dimethyl Ether in Diesel Engine - Progress and Perspectives, ICE Vol. 34-3, 2000 Spring Technical Conference, ASME, No. 2000-ICE-292, pp. 65-74.
6 Fleisch, T., McCarthy, C., Basu, A., Udovich, C., Charbonneau, P., Slodowske, W., Mikkelsen, S.-E. and McCandless, J., 1995, "A New Clean Diesel Technology : Demonstration of ULEV Emissions on a Navistar Diesel Engine Fueled with Dimethyl Ether," SAE Paper, 950061.
7 Chen, Z., Konno, M. and Kajitani, S., 1998, "Performance and Emissions of DI Compression Ignition Engines Fueled with Dimethyl Ether (1st Report, Performance and Emissions of Retrofitted Engines)," JSME paper, 64-627-B, pp. 383-388.
8 Oguma, M., Konno, M., Kajitani, S. and Rhee, K. T., 2000, "A Study of Low Compression-Ratio Dimethyl Ether (DME) Diesel Engine," The ASME Internal Combustion Engine Division, Paper No. 2000-ICE-289.
9 Kim, D., Lee, G., Kim, H., Oh, S., Jeong, S. and Pyo, Y., 2010, "Injector Nozzle Design for DME Common-rail System," KSAE 2010 Annual Conference, KSAE10-A0147.