Silicon-based MHz ultrasonic nozzles

C. S. Tsai, Y. L. Song, C. H. Cheng, N. Wang, R. W. Mao, C. T. Lee, S. C. Tsai

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper reports the design, simulation, and atomization performances of sili-con-based 3-Fourier horn nozzles 1.80 x 0.21 x 0.11 and 1.20 x 0.15 x 0.11 cm3 in dimensions at ultrasonic drive frequencies of 1.0 and 1.5 MHz, respectively. The novel design of multiple Fourier horns in resonance facilitates Faraday instability of capillary waves with a specific wavelength, yielding monodisperse micron-size droplets. For example, the 1.0 MHz nozzles have produced 4.5 μm-diameter mono-disperse water droplets and the 1.5 MHz nozzles have produced 2.4 μm-diameter monodisperse ethanol droplets.

Original languageEnglish
Pages1030-1032
Number of pages3
Publication statusPublished - 2008 Jan 1
Event12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008 - San Diego, CA, United States
Duration: 2008 Oct 122008 Oct 16

Other

Other12th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2008
CountryUnited States
CitySan Diego, CA
Period08-10-1208-10-16

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Bioengineering

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