Title page for etd-0806112-161809


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URN etd-0806112-161809
Author Qiao-Hong Jheng
Author's Email Address joe19324257@gmail.com
Statistics This thesis had been viewed 5358 times. Download 4853 times.
Department Mechanical and Electro-Mechanical Engineering
Year 2011
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Spary Droplet Diameter and Flowfield Characteristic Analysis
Date of Defense 2012-07-03
Page Count 86
Keyword
  • Droplet size
  • Spray field
  • Spray angle
  • Axial velocity
  • Abstract The aim of this study was to observe the properties of a spray field, with micro particle image velocimetry (μPIV) and holographic interferometric particle imaging (IPI) employed for the imaging and analysis of the global spray field. The experiment adopted different nozzle diameters (dj = 200 μm, and dj = 500 μm) and different values of gauge pressure (ΔP = 300 kPa, ΔP = 500 kPa, and ΔP = 700 kPa) as the main parameters, and DI (distilled) Water as the working medium. The study was divided into two parts. The first part used the μPIV system to observe the two-dimensional global visualization of spray field distribution and spray angle from each nozzle under different values of gauge pressure (ΔP). The flow velocity distribution and variations (axial velocity, and impact velocity) of the global spray frame were also measured. As the nozzle diameter would determine the distribution of spray droplets, the second part adopted the IPI system to measure and explore the atomized droplet sizes from each nozzle under different values of gauge pressure (ΔP), whereby drop size histograms were created through statistical analysis.
    Advisory Committee
  • Chao-Kuang Chen - chair
  • C.J. Ho - co-chair
  • Chin-Chia Su - co-chair
  • Shou-Shing Hsieh - advisor
  • Files
  • etd-0806112-161809.pdf
  • indicate access worldwide
    Date of Submission 2012-08-06

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