Submerged jet impingement cooling of a nanostructured plate

Şeşen, Muhsincan and Koşar, Ali and Demir, Ebru and Kurtoğlu, Evrim and Kaplan, Nazlı and Erk, Hadi Çağdaş and Khudhayer, Wisam and Karabacak, Tansel (2012) Submerged jet impingement cooling of a nanostructured plate. In: ASME International Mechanical Engineering Congress and Exposition (IMECE), Vancouver, Canada

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In this paper, the results of a series of heat transfer experiments conducted on a compact electronics cooling device based on single phase jet impingement techniques are reported. Deionized-water is propelled into four microchannels of inner diameter 685 mu m which are used as nozzles and located at a nozzle to surface distance of 2.5mm. The generated jet impingement is targeted through these channels towards the surface of a nanostructured plate. This plate of size 20mmx20mm consisted of similar to 600 nm long copper nanorod arrays with an average nanorod diameter of 150 nm, which were integrated on top of a silicon wafer substrate coated with a copper thin film layer (i.e. Cu-nanorod/Cu-film/Silicon-wafer). Heat removal characteristics induced through jet impingement are investigated using the nanostructured plate and compared to results obtained from a flat plate of copper thin film coated on silicon wafer surface. Enhancement in heat transfer up to 15% using the nanostructured plate has been reported in this paper. Heat generated by small scale electronic devices is simulated using a thin film heater placed on an aluminum base. Surface temperatures are recorded by a data acquisition system with the thermocouples integrated on the surface at various locations. Constant heat flux provided by the film heater is delivered to the nanostructured plate placed on top of the base. Volumetric flow rate and heat flux values were varied in order to better characterize the potential enhancement in heat transfer by nanostructured surfaces.
Item Type: Papers in Conference Proceedings
Additional Information: Paper No. IMECE2010-39055
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Q Science > QC Physics
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Mechatronics
Faculty of Engineering and Natural Sciences > Basic Sciences > Physics
Faculty of Engineering and Natural Sciences
Depositing User: Ali Koşar
Date Deposited: 14 Jan 2014 11:14
Last Modified: 26 Apr 2022 09:14

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