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에탄올/가솔린 혼합연료의 물리적 특성에 따른 분무 특성 비교

Title
에탄올/가솔린 혼합연료의 물리적 특성에 따른 분무 특성 비교
Other Titles
Comparison of Spray Characteristics according to Physical Properties of Ethanol/Gasoline Blended Fuel
Author
이기형
Keywords
무수에탄올; 함수에탄올; 분사율; 분무가시화; 분무패턴; Anhydrous ethanol; Hydrous ethanol; Injection rate; Spray visualization; Spray Pattern
Issue Date
2017-09
Publisher
한국액체미립화학회
Citation
한국액체미립화 학회지, v. 22, No. 3, Page. 109-115
Abstract
The aim of this study is to investigate the effect of physical properties of fuels on spray characteristics in the gasoline direct injection system. Injection rate, spray visualization, and spray pattern experiments were performed to analyze the spray characteristics of ethanol, gasoline, and ethanol/gasoline blends. We measured injection rate of each fuel via the Bosch method. The spray visualization experiment was also carried out at atmospheric pressure using a high-speed camera. Finally, the average of drop surface area per unit volume was measured using the optical patternator. The experimental results from Bosch method showed that peak injection rate increased when the volume fraction of ethanol increased. In addition, higher viscosity of ethanol than that of gasoline leads to longer injection delay. At the initial injection region before reaching 0.8 ms, the spray tip penetration becomes longer as increasing the volume fraction of ethanol, but reversely shorter after 0.8 ms. It was found that ethanol makes spray angle become larger. The surface area per unit volume of the drop was decreased as the distance from the injection tip or the concentration of the gasoline increased.
URI
http://kiss.kstudy.com/thesis/thesis-view.asp?key=3553092https://repository.hanyang.ac.kr/handle/20.500.11754/103593
ISSN
1226-2277
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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