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Development of a Heavy-Duty DME Truck in EFV21 Project~Research and Development of DME Engine and Chassis
Technical Paper
2005-03-0176
Sector:
Language:
English
Abstract
Recently DME (dimethyl ether) has surfaced as a promising
alternative fuel for heavy-duty diesel trucks. Since DME is
sulfur-free, and undergoes smokeless combustion, a drastic
reduction in exhaust emissions is possible using EGR and a
catalyst. A heavy-duty, 20-ton GVW DME truck was developed under
the auspices of the Ministry of Land, Infrastructure and Transport,
the first known instance worldwide.
With suitable combustion improvement and careful design of the
fuel system considering DME's unique fuel characteristics, and
also use of the proper EGR and catalyst, exhaust emissions levels
were generally less than 1/4 of the new Japan (2005) long-term
limits. The running performance of DME truck was found to be
equivalent to a diesel-powered truck.