Development of Fuel Injection Equipment and Combustion System for DI Diesels Operated on Dimethyl Ether 950062
The paper describes basic investigations towards identifying optimum specifications of fuel injection and combustion system parameters for a new alternative fuel, Dimethylether (DME), allowing liquid direct injection, compression ignition and smokeless combustion.
Special emphasis is drawn on fuel injection equipment (FIE) parameter optimization using new development tools such as simulation techniques of the fuel system hydraulics and numerical identification methods to determine sofar unknown fuel data and flow phenomena of the new alternative fuel.
Combustion system parameters are analyzed on a single cylinder test engine with respect to efficiency, gaseous emissions, and noise. Due to the particular properties of the fuel the engine parameter optimization was concentrated on new directions of system development thus allowing new solutions for FIE and combustion system, as described in this paper.
The new alternative fuel DME shows very promising results with respect to emissions (ULEV level is achievable without catalyst), efficiency (energy equivalent BSFC is comparable to DI diesel engines), durability (no ignition aid is needed and low fuel injection pressures are possible) and comfortable combustion noise.
Citation: Kapus, P. and Ofner, H., "Development of Fuel Injection Equipment and Combustion System for DI Diesels Operated on Dimethyl Ether," SAE Technical Paper 950062, 1995, https://doi.org/10.4271/950062. Download Citation
Author(s):
Paul Kapus, Herwig Ofner
Affiliated:
AVL LIST GmbH - Austria
Pages: 18
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Alternative Fuels for Low Emissions and Improved Performance in Ci and Heavy Duty Engines-SP-1093, SAE 1995 Transactions: Journal of Fuels and Lubricants-V104-4
Related Topics:
Diesel / compression ignition engines
Alternative fuels
Fuel injection
Dimethyl ether (DME)
Fuel systems
Combustion and combustion processes
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