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DEVELOPMENT OF A HEAT PIPE AND GREY BASED TAGUCHI METHOD FOR MULTI-OUTPUT OPTIMIZATION TO IMPROVE THERMAL PERFORMANCE USING HYBRID NANOFLUIDS

Mohammed Yunus, Mohammad S. Alsoufi
Frontiers in Heat and Mass Transfer (FHMT) 12 - 11 (2019)


Abstract


Swift cooling systems, improved microprocessor chips, processor performance and power usage have increased production of an enormous amount of heat and high operating temperatures due to excess heat flux density in the field of microelectronics. A rapid cooling of electronic circuits and heat dissipation for the same size of pipe with the present technology as Nano-size circuits critically generate high heat flux beyond 100 W/cm2 is currently the challenging task with which we are presented. Cooling in the form of heat transfer should be managed using both thermal conductivity (evaporation) and phase transition (condensation) between the two solid interfaces due to the higher amount of heat fluxes, high heat carrying capacity in a smaller size of heat exchangers as well as the heat pipe. A comprehensive knowledge of this mechanism is yet to be achieved, despite the fact that a heat pipe operates against gravity and a high heat carrier capability. In this article, a detailed study of the performance of a heat pipe (temperature gain and heat transfer capability) under the influence of various working parameters such as working fluid, a wick structure and orientation of a pipe is carried out to increase the cooling capability of the heat pipe. Also, the optimum level of various working parameters on the thermal performance of a heat pipe using a Taguchi-Grey analysis has been presented followed by ANOVA and confirmation tests. From different working fluids, Nano-fluid was the most influential working parameter for swift cooling.    


Full Text: PDF
DOI: http://dx.doi.org/10.5098/hmt.12.11

ISSN: 2151-8629