Arun Jacob and Leena R. and Krishnakumar T.S. and Jose Prakash M.
Numerical and Experimental Investigations on Jet Impingement Cooling
516 - 520
2013
7
3
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/5090
https://publications.waset.org/vol/75
World Academy of Science, Engineering and Technology
Effective cooling of electronic equipment has emerged
as a challenging and constraining problem of the new century. In the
present work the feasibility and effectiveness of jet impingement
cooling on electronics were investigated numerically and
experimentally. Studies have been conducted to see the effect of the
geometrical parameters such as jet diameter (D), jet to target
spacing (Z) and ratio of jet spacing to jet diameter (ZD) on the heat
transfer characteristics. The values of Reynolds numbers considered
are in the range 7000 to 42000. The results obtained from the
numerical studies are validated by conducting experiments. From the
studies it is found that the optimum value of ZD ratio is 5. For a
given Reynolds number, the Nusselt number increases by about 28
if the diameter of the nozzle is increased from 1mm to 2mm.
Correlations are proposed for Nusselt number in terms of Reynolds
number and these are valid for air as the cooling medium.
Open Science Index 75, 2013