Spray behaviour of hydrous ethanol fuel (E93) under cold condition

Jin, Seong-Ho and Brear, Michael and Brewster, Simon (2008) Spray behaviour of hydrous ethanol fuel (E93) under cold condition. In: Fifth Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, 3-4 December 2008, The University of Western Australia, Perth, Australia.

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Abstract

Hydrous ethanol fuels can be used to substitute gasoline in
engine applications. The behaviour of such as fuel spray (E93, 93% ethanol and 7% water) was investigated under various ambient temperatures, including sub-zero conditions, by means of high-speed direct photography and laser light sheet illumination techniques (Mie scattering). The experimental results show that the spray patterns are not significantly changed. In the case of low ambient temperature, the spray tip penetration decreases and the spray angle keeps almost constant once the spray becomes fully developed. The results also show that scaling of the spray tip penetration rate previously proposed by the authors achieves reasonable collapse of the experimental results. Normalized droplet diameter was also obtained, and shows that larger droplets formed are at sub-zero temperature.

Item Type:Conference or Workshop Item (Presentation)
Additional Information:Hydrous ethanol fuels can be used to substitute gasoline in engine applications. The behaviour of such as fuel spray (E93, 93% ethanol and 7% water) was investigated under various ambient temperatures, including sub-zero conditions, by means of high-speed direct photography and laser light sheet illumination techniques (Mie scattering). The experimental results show that the spray patterns are not significantly changed. In the case of low ambient temperature, the spray tip penetration decreases and the spray angle keeps almost constant once the spray becomes fully developed. The results also show that scaling of the spray tip penetration rate previously proposed by the authors achieves reasonable collapse of the experimental results. Normalized droplet diameter was also obtained, and shows that larger droplets formed are at sub-zero temperature.
Keywords:Hydrous ethanol, High-speed direct photography, Spray, Droplet diameter
Subjects:H Engineering > H141 Fluid Mechanics
H Engineering > H330 Automotive Engineering
H Engineering > H311 Thermodynamics
Divisions:College of Science > School of Engineering
ID Code:6067
Deposited By: Seong-Ho Jin
Deposited On:21 Aug 2012 14:51
Last Modified:02 Sep 2014 09:13

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