Experimental Investigation of Water Cooled Minichannel Heat Sink for Computer Processing Unit Cooling
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 8
Abstract
the present experimental research use a minichannel heat sink manufactured from copper metal with a rectangular cross section area channels and hydraulic diameter 1.6667 mm. The de-ionized water is used as a coolant liquid to cooled the 2.8 GHz computer processing unit chips in a real personal computer. This study discusses the effects of varying mass flow rates of the coolant water through minichannel, with changing the load operation conditions of the CPU chip, on CPU temperature of real personal computer, heat transfer rate, thermal resistance, Nusselt number, pressure drop. Also study the effect of junction temperature on failure rate and mean time to failure. A comparison between water cooling system with air cooling system. The results have shown that the CPU temperature is dependent on the coolant fluid (water or air) temperature, which is increases with the increase of coolant fluid temperature and vice-versa. The water cooling system have proved to be successful in reducing the CPU temperature from 42˚C to 33˚C at 0.0044 kg/s. The values of heat transfer rate at load operation condition are 907.88 W/hr which is higher than at no-load operation conditions that reached to 670.51 W/hr at 0.0177 kg/s of mass flow rate for one hour of period time. The amount of pressure drop increases with increses a mass flow rate and with operation CPU at load conditionis which that is higer than at no load operation condition. The failure rate at load operation condition is higher than at no-load operation condition this due to CPU temperature which that at load operation conditions is higher than at no-load operation conditions, this lead to decreases the mean time to failure.
Authors and Affiliations
Kays A. Al- Tae’y, Eqbal Hussain Ali, Manal Naser Jebur
Keywords
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- EP ID EP391932
- DOI 10.9790/9622-0708013849.
- Views 96
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