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http://dx.doi.org/10.15435/JILASSKR.2020.25.3.111

Experimental Investigation of Impinged Spray Characteristics of Oxygenated fuels Using BOS Method  

Bang, Seung Hwan (신한대학교 기계자동차융합공학과)
Publication Information
Journal of ILASS-Korea / v.25, no.3, 2020 , pp. 111-118 More about this Journal
Abstract
This paper describes the effect of DME, biodiesel blended fuels on the macroscopic spray characteristics in a high pressure diesel injection system using Background Oriented Schlieren (BOS) method. The BOS method for visualization of impingement evaporation sprays to analyze macroscopic spray properties and evolutionary processes. In this work, the blending ratio of DME in the blended fuel are 0, 50, 100% by weight ratio. In order to investigate the macroscopic impinged spray characteristics under the various injection parameters and blending ratio. In this work, a mini-sac type single-hole nozzle injector with nozzle hole was length 0.7 mm and diameter of 0.3 mm was used. According to the result, the spray area of the collision wall increased as the DME mixing ratio increased, and the evolutionary pattern showed a stepwise increase due to the collision effect of the wall. Also, results of impinged spray area were increased according to increasing injection pressure.
Keywords
Biodisel; Background oriented schlieren(BOS); Dimethyl ether(DME); Impinged spray;
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