Atomization and Sprays Journal of the International Institutes for Liquid Atomization and Spray Systems

ISSN for PRINT: 1045-5110

For Online Access

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2004, Volume14

Issue 2

103 pages

DOI: 10.1615/AtomizSpr.v14.i2

Issue price - $85.00

Myoung Chan Kim
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea

Sang Yong Lee
Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-Dong, Yusong-Gu, Taejon, 305-701 Korea

Wamadeva Balachandran
Department of Systems Engineering, Brunel University, Uxbridge, Middlesex, Un ited Kingdom

In the present study, a series of experiments has been conducted for proper selection of nozzle materials to generate fine liquid (water) drops ranging between 30 and 450 μm through the electrohydrodynamic atomization process. The spindle mode was the primary drop-generation mode considered in this experimental work. Three nozzles made of different materials were prepared and tested: a stainless steel tube, and plain and metal (gold)-coated (except for the tip portion) silica tubes. The drop size distribution changed with the electrical conductivity and the surface wettability of the tubes, as well as with other parameters such as the liquid flow rate and the capillary tube voltage. Among these nozzles, the metal-coated silica tube showed the best performance in generating uniform, fine drops over a wide range of tube voltage because the pivoting motion and the sporadic corona could be suppressed.

DOI: http://dx.doi.org/10.1615/AtomizSpr.v14.i2.60 Download article, 15 pages

Article price - $35.00

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