그래핀이 포함된 나노유체의 열전도도 특성에 대한 연구
A Study on the Characteristics of the Thermal conductivity of Nanofluids Containing Graphene
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초록
A nanofluidisafluidcontainingsuspendedsolidparticles,withsizesontheorderofnanometers.Especially graphenenanoparticlethathasthehighthermalconductivitypropertiesamongthevariousnanoparticlesaddedto thenanofluidisreceivingattention.Grapheneisaflatmonolayerofsp2-bondedcarbonatomstightlypackedinto ahoneycomblattice.Andareknowntohaveveryhighthermalconductivity.Therefore,wecomparedthermal conductivity with viscosity ofgraphene M-5 nanofluids and graphene M-15 nanofluids.Graphene M-5 and grapheneM-15havedifferentaverageparticlediametersandtheotherpropertiesarethesame.Twokindsof graphenenanofluidswasexaminedbymeasuringthermalconductivityviatransienthot-wiremethod.Andthe viscositywasmeasuredbyusingarotationaldigitalviscometer.Asaresult,grapheneM-5nanofluidsexhibited betterthermalconductivityandviscositythangrapheneM-15nanofluids.
Abstract
A nanofluidisafluidcontainingsuspendedsolidparticles,withsizesontheorderofnanometers.Especially graphenenanoparticlethathasthehighthermalconductivitypropertiesamongthevariousnanoparticlesaddedto thenanofluidisreceivingattention.Grapheneisaflatmonolayerofsp2-bondedcarbonatomstightlypackedinto ahoneycomblattice.Andareknowntohaveveryhighthermalconductivity.Therefore,wecomparedthermal conductivity with viscosity ofgraphene M-5 nanofluids and graphene M-15 nanofluids.Graphene M-5 and grapheneM-15havedifferentaverageparticlediametersandtheotherpropertiesarethesame.Twokindsof graphenenanofluidswasexaminedbymeasuringthermalconductivityviatransienthot-wiremethod.Andthe viscositywasmeasuredbyusingarotationaldigitalviscometer.Asaresult,grapheneM-5nanofluidsexhibited betterthermalconductivityandviscositythangrapheneM-15nanofluids.
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