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Diesel Generator exhaust gas recirculation (EGR) facility was added as the
To verify the results of basic studies and experiments, the second stage of construction, full-fledged operation has
world’s largest 1250 kW DME diesel power generation been conducted since October, 2005.
system was constructed in JFE Engineering’s Tsurumi It can be confirmed that the combustion performance of
Works, Yokohama, Japan. DME is as good as oil fuel from the results of combustion
The diesel engine is based on Daihatsu 6DK-26, one of analysis. Thermal efficiency is also of same level as oil.
their proven products. It is a medium-speed 6-cylinder Furthermore, concerning exhaust NOx, the most important
engine equipped with jerk type injection pumps for each development task, fine results far beyond the target were
cylinder. achieved; 1/10 to 1/30 of that of the oil powered engine.
The extent of modification was relatively small, so it would Through this MW-class DME diesel development project,
be expected that existing oil-fueled engines can be easily it has been demonstrated that DME has the practical
converted to DME-fueled. potential as an alternative fuel for diesel engines and
In October, 2004, construction of the demonstration for eco-friendly generation systems.
plant was finished and its trial operation started. After the

DME as Diesel substitute for power generation in 〜Diesel oil price in Caribbean are higher than DME.
the Caribbean DME is more suitable for dispersed small diesel
The electric utility industry requires cheaper fuel. But, electric power generation (5MW or less).
global environment counter measure is also important Since existing LPG tanker with very minor modifications
in order to continue a electric utility industry. can be utilized for transporting DME, additional
Best energy for global environment (CO2 emission investment for logistics would “ONLY” be for the
per calorie) are hereinafter; receiving tank and associated facilities at customer
Renewable > NG > LPG = DME > Diesel > HFO-C site.
> Coal
0 85 100 113 119 150 BIBLIOGRAPHY
But, the CAPEX for the renewable energy or NG (LNG) 〜 Basu, A., Gradassi, M., Sills, R., Fleisch, T., & Puri,
is very high and also renewable energy has low power R. (2001). Use of DME as a Gas Turbine Fuel. ASME
generation efficiency (unstable power generation). Turbo-Expo. New Orleans.
By comparing Diesel power generation, DME has the 〜 “DME Handbook” edited by Japan DME Forum and
advantage for the power generation view. published by Ohmsha, Ltd. 2006. Printed in Japan
〜The CO2 emission of DME is lower than Diesel. 〜 “DME Handbook Supplement” edited by Japan
〜The Capex of a DME power generator is equivalent DME Forum and published by Ohmsha, Ltd. 2011.
to a diesel power generator. Printed in Japan

INDUSTRY JOURNAL 19