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2004•The Proceedings of Ibaraki District ConferenceOpen access

Comparison of DME spray with diesel fuel spray under the same,fuel injection pressure

H Takayasu, Mitsuru KONNO

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Abstract

Using a high temperature and high pressure constant volume vessel filled with nitrogen, macroscopic characteristics of dimethyl ether spray were compared with diesel fuel spray under the same constant injection pressure. Schlieren method and scattered backlight method were employed to distinguish the evaporated region from non-evaporated region. As the results, it was found thtat dimethyl ether evaporated rapidly compared with diesel fuel, and the penetration of the gasified dimethyl ether jet was comparable to that of diesel fuel spray.

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Using a high temperature and high pressure constant volume vessel filled with nitrogen, macroscopic characteristics of dimethyl ether spray were compared with diesel fuel spray under the same constant injection pressure. Schlieren method and scattered backlight method were employed to distinguish the evaporated region from non-evaporated region. As the results, it was found thtat dimethyl ether evaporated rapidly compared with diesel fuel, and the penetration of the gasified dimethyl ether jet was comparable to that of diesel fuel spray.

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Available abstract

Using a high temperature and high pressure constant volume vessel filled with nitrogen, macroscopic characteristics of dimethyl ether spray were compared with diesel fuel spray under the same constant injection pressure. Schlieren method and scattered backlight method were employed to distinguish the evaporated region from non-evaporated region. As the results, it was found thtat dimethyl ether evaporated rapidly compared with diesel fuel, and the penetration of the gasified dimethyl ether jet was comparable to that of diesel fuel spray.

Key concepts: Diesel fuel, Dimethyl ether, Spray characteristics, Schlieren, Materials science, Penetration (warfare), Volume (thermodynamics), Fuel injection

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