Browse > Article

Atomization Characteristics for Various Injection Nozzle Type and Property Changes  

Kim, Yong-Guk (Department of Mechanical Engineering, Graduate School, Chungnam National University)
Ryu, Jeong-In (Department of Mechanical Engineering, BK21 Mechatronics Group, Chungnam National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.4, 2010 , pp. 62-67 More about this Journal
Abstract
The objective of this experimental study is to verify atomization characteristics of emulsified fuel. The emulsified fuel made of adding the ultrasonic energy is analyzed with atomization characteristics and chemicophysics. As water contents within emulsified fuel and needle angle increase, SMD, viscosity and surface tension were analyzed. By measuring the distribution percentage of hydrogen volume by $^1H$-NMR spectrum, the proportion of aromatics and paraffins is analyzed and compared each other. The results of study is as follows. First, as water contents within emulsified fuel and needle angle of nozzle increases, SMD increases. Second, for the distribution percentage of hydrogen volume, the distribution percentage of aromatics is about 10% and the rest portion is paraffins.
Keywords
Emulsified fuel; Ultrasonic energy; Atomization characteristics; SMD(Sauter Mean Dia); $^1H$-NMR;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D. S. Choi, "Study on the Atomization Characteristics and the Engine Performance Characteristics of the Ultrasonic Energy Added Diesel Fuel," Ph. D. Dissertation, CNU, 1996.
2 S. C. Cho, "Development and the Low Emission Type Fuel Feeding System for Diesel Automobile I (Characteristics and Spray of Emulsified Fuel)," Ilasskorea, Vol.2, No.3, 1997.
3 S. C. Cho, M. K. Yoon and J. I. Ryu, "(An) Experimental Study on the Microexplosion Phenomena of Single Droplet Emulsified Fuel," Ph. D. Dissertation, CNU, 2003.
4 K. H. Kho, S. J. Lee, B. O. Lee and J. I. Ryu, "A Study on the Flow Characteristics of Emulsified Fuel by the Ultrasonic Energy in Tube," Transaction of KSME, Vol.29, No.11, pp.1248-1256, 2005.   과학기술학회마을
5 M. Tsukahara, "W/O Emulsion Realizes Low Smoke and Efficient Operation of DI Engines without High Pressure Injection," SAE 891841, 1989.
6 J. I. Ryu, A Study on the Development of Ultrasonic Fuel Atomization System for Complete Combustion in Diesel Engine, Report for Objective Basic Research, KOSEF, 1993.
7 D. S. Choi, J. H. Seol and J. I. Ryu, "A Study on the Performance of Diesel Automobile of Ultrasonic Fuel Supply System(I)-About the Droplet Size Distribution of Ultrasonic Fuel Supply System," Transactions of KSAE, Vol.2, No.1, pp.1-8, 1994.
8 J. I. Ryu, J. D. Jeong and J. G. Yang, "A Study on the Performance Improvement of Diesel Automobile Engine with Ultrasonic Fuel Feeding System(II)-On the Spray Characteristics and Engine Performance," Transactions of KSAE, Vol.2, No.2, pp.50-56, 1994.