분사율 변화에 따른 Dimethyl Ether (DME)와 디젤의 분무도달거리

다국어 초록 (Multilingual Abstract)

Dimethyl Ether (DME) has been considered as one of the most attractive alternative fuels for a compression ignition engine. The major advantage of DME-fuelled engine is a great potential for soot-free combustion without sacrificing an inherent high thermal efficiency of diesel engine, despite a necessity for modification of the conventional fuel injection system. An experimental study on DME and conventional diesel sprays was conducted by employing a common-rail type fuel injection system with a 5-holes sac type nozzle, including a constant volume vessel pressurized with nitrogen gas. The injection rates of DME and diesel fuel were recorded with the Bosch type injection rate meter. The injection delay of DME was shorter than that of diesel fuel.<br/>
The measured injection rates of DME and diesel fuel were correlated with spray penetrations. The prediction method of spray penetration was established using the injection rates, which was verified with the Dent's penetration model and found to agree well for DME case.

참고문헌 (Reference)

1 "The Fuel Rate indicator" 1966.

2 "Structure of FuelSprays in Diesel Engines" 900475 : 1990.

3 "GlobalAssessment of Dimethyl Ether Comparisonwith Other Fuels" 1997.

4 "Fundamental Research of DMEDiesel Engine Operated with a Common RailInjection System" 2002.

5 "Effects of GasDensity and Vaporization on Penetration andDispersion of Diesel Sprays" 1996.

6 "Dimethyl Ether Spray Characteristics Compared toDiesel in a Common-rail Fuel InjectionSystem" 2002.

7 "Development of FuelInjection Equipment and Combustion Systemfor DI Diesels Operated on Dimethyl Ether" 1995.

8 "Compression Ignition Delay of Dimethyl Ether" 2003.

9 "A Basic for the Comparison ofVarious Experimental Methods for StudyingSpray Penetration" 710571 : 1971.