Title page for etd-0707114-180008


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URN etd-0707114-180008
Author Sung-Yang Luo
Author's Email Address No Public.
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Department Mechanical and Electro-Mechanical Engineering
Year 2013
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Performance Analysis and Visualization of Thermal hydraulics Characteristics of Liquid Spray through Micro-nozzle Plate Arrays
Date of Defense 2014-07-23
Page Count 182
Keyword
  • Ultrasound micro-nozzle atomizer
  • ITO transparent heater
  • Spray cooling
  • IR detector
  • dynamic droplet size distribution
  • Abstract In this study, we use an ultrasound micro-nozzle atomizer, made of piezoelectric ceramic material as the cooling system apparatus to observe the spray impinging on an ITO transparent heater. The working fluid is DI water and the main experimental parameters are the distance from nozzle to target, Z(30, 50, 70, 90, 100 mm), the temperature of the heater at the center point, Tc(25, 75, 125, 175, 225 oC), and nozzle diameter, dj(7, 10, 35 μm). The μPIV technique and a high speed camera are used to record the 2-D velocity distribution of a spray flow field on the side view and dynamic droplet size distribution on the lower view, respectively. In regard to the thermal characteristic, we use a data logger, T-type thermocouple wire and IR detector to record the surface temperature distribution on a transparent heater, and carry out an analysis of the heater’s temperature drop result from spray cooling. Finally, we develop a mini spray cooling system for CPUs or other electrical devices.
    Advisory Committee
  • Ching-Jeng Ho - chair
  • Chao-Kuang Chen - co-chair
  • Shou-Shing Hsieh - advisor
  • Files
  • etd-0707114-180008.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2014-09-01

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