Experimental Investigation of the Effect of the Metal Foam Material on CPU Cooling

Öz

One of the most important component of computers is processors (CPU). Because of the reasons like running too many programs simultaneously and playing games may cause the processor to overheat. This situation may cause unwanted computer malfunction. The CPU capacity and heat quantities increase with increasing the CPU speed and its performance. In order to run the system effectively, this heat must be removed and the critical surface temperature of the CPU must be kept below approximately 85 °C. In this present study, aluminum open cell metal foam (Al-6101) heat sink having pore density of 10 and 40 PPI (pore per inch) was used instead of the conventional plate type aluminum heat sink. 10 and 40 PPI aluminum metal foam materials are compared with each other and the results are presented in graphics at different fan speeds (1140, 1742, 2439, 2944, 3308 and 4187 rpm). According to the results, in %0-10 CPU usage (standby), lower surface temperatures were reached while using 10 PPI aluminum metal foam material. However, in %100 CPU usage, lower surface temperatures were reached while using 40 PPI aluminum metal foam material.

Anahtar Kelimeler

• CPU cooling,Heat transfer,aluminum metal foam

Kaynakça

1. [1] Liu D., Zhao F., Yang H. and Tang G. “Thermoelectric mini cooler coupled with micro thermosiphon for CPU cooling system” Energy, 83 (2015): 29-36.
2. [2] Feng S. S., Kuang J. J., Wen T., Lu T. J. and Ichimiya K. “An experimental and numerical study of finned metal foam heat sinks under impinging air jet cooling” International Journal of Heat and Mass Transfer, 77 (2014): 1063–1074
3. [3] Qu Z., Wang T., Tao W. and Lu T. “Experimental Study of Air Natural Convection On Metallic Foam-Sintered Plate” International Journal of Heat and Mass Transfer, 38 (2012): 126-132.
4. [4] Shih W. H., Chou F. C. and Hsieh W. H. “Experimental Investigation of the Heat Transfer Characteristics of Aluminum Foam Heat Sinks with Restricted Flow Outlet” Journal of Heat Transfer, 129 (2007): 1554–1563.
5. [5] Shih W. H., Chiu W. C. and Hsieh W. H. “Height Effect On Heat Transfer Characteristics Of Aluminum Foam Heat Sinks” Journal of Heat Transfer, 128(6) (2005): 530-537.
6. [6] Bhattacharya A. and Mahajan R. L. “Metal Foam and Finned Metal Foam Heat Sinks for Electronics Cooling in Buoyancy Induced Convection” J. Electron. Packag. 128 (2006): 259–266.
7. [7] Hsieh W. H., Wu J. Y., Shih W. H. and Chiu W. C. “Experimental Investigation of Heat Transfer Characteristics of Aluminum Foam Heat Sinks” International Journal of the Heat and Mass Transfer, 47 (2004): 5149-5157.
8. [8] Phanikumar M. S. and Mahajan R. L. “Non-Darcy Convection in High Porosity Metal Foams” International Journal of the Heat and Mass Transfer, 45 (2002): 3781-3793.