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Experimental Study of Fluidic Oscillators as Spray Cooling Devices
Başlık:
Experimental Study of Fluidic Oscillators as Spray Cooling Devices
Yazar:
Koch, Kevin J., author.
ISBN:
9780438121300
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (141 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Stephen D. Heister Committee members: Timothy S. Fisher; Amy M. Marconnet.
Özet:
Continual technological advancement in the size and energy consumption of electronic devices draws with it an ever increasing need for cooling techniques that can keep up with the power output. Traditional impingement jet cooling has been long studied and is widely believed to be the pinnacle of cooling heat transfer with a single phase liquid. The purpose of this study is to determine how the heat transfer of 3D printed stationary oscillatory jets compare with the standard convention of staring impingement jet arrays. This is a continuation of research in this field, and as such, improvements are made to the testing apparatus in order to obtain more accurate data but the major goals remain to find the more effective method to cool a thermal load 1 kW/cm2. Testing was performed under the Center for Integrated Thermal Management of Aerospace Vehicles at the Zucrow Laboratories of Purdue University. The results with 3D printed injectors left confusing results, as such, CNC milling was chosen as the backup. In a way, a secondary result of this research is the discovery of the limitations of these commercially available 3D printer techniques. While additive manufacturing adds many different options to design, there are still many issues associated with the use of 3D printed parts. Upon switching to CNC machined injectors, very large improvements over previous injector designs for the fluidic oscillators were observed, and average Nusselt numbers show that within high pressure regions, oscillating jets are able to better cool a surface when compared to the traditional staring array of jets.
Notlar:
School code: 0183
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