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http://dx.doi.org/10.15435/JILASSKR.2014.19.4.216

Effect of Nozzle Hole Number on Atomization Characteristics of DME Fuel Spray using High Pressure Injector  

Lee, Jongtae (국립환경과학원 교통환경연구소)
Lee, Sanghoon (한양대학교 대학원)
Chon, Mun Soo (한국교통대학교 에너지시스템공학과)
Publication Information
Journal of ILASS-Korea / v.19, no.4, 2014 , pp. 216-220 More about this Journal
Abstract
This paper presents effect of nozzle hole number on atomization characteristic of DME fuel spray using three different type of injector having the hole number of 6, 7 and 8. For this study, PDPA(phase Doppler particle analyzer) experiment was performed in terms of $T_{ASOE}$ under various injection pressure. To compare general trend of atomization characteristic, the law data were ensemble averaged based on $T_{eng}$ of 0.2 ms. Results showed that the droplet diameter in terms of SMD(Sauter Mean Diameter) was reduced as increase in injection pressure. Increasing the number of hole lead to reduce in droplet diameter, but no significant reduction in diameter was observed between hole number of 7 and that of 8. In addition, increasing the number of hole resulted in decrease in droplet velocity which is considered as the effect of reduction in spray momentum due to decreasing of fuel quantity per each hole.
Keywords
PDPA; Nozzle hole number; Atomization characteristics; DME(Di-Methyle Ether);
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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