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Information Seminar Paper

Title

INVESTIGATION ON EFFECT OF NANOPARTICLES SEDIMENTATION ON THERMAL CONDUCTIVITY OF SIO2 NANOFLUIDS

Pages

 Start Page | End Page

Keywords

SIO2 NANO FLUIDS 

Abstract

 NANO FLUID IS DEFINED AS CONVENTIONAL FLUID WITH SUSPENDED PARTICLES AT NANOMETER SIZE (NORMALLY BELOW 100 NM) IN IT. THESE FLUIDS POSSESS GREAT POTENTIAL FOR HEAT TRANSFER ENHANCEMENT. SOME OF THE MAIN ISSUES RELATED TO NANO FLUIDS AND THEIR PREPARATION ARE STABILITY, PARTICLE SEDIMENTATION AND CLUSTERING. IN THIS STUDY EFFECT OF PARAMETERS SUCH AS BASE FLUID, PARTICLE SIZE AND CONCENTRATION ON NANO FLUID STABILITY AND EFFECT OF PARTICLE SEDIMENTATION THROUGH TIME FROM NANO FLUID PREPARATION ON ITS THERMAL CONDUCTIVITY HAVE BEEN INVESTIGATED. FOR EXAMPLE THE AMOUNT OF THERMAL CONDUCTIVITY OF SAMPLE WITH 3% VALUME FRACTION SIO2 IN THE BASE FLUID WITH INITIAL VALUE 0.415 W/M.K IS DECRESE TO 0.365 W/M.K. ALSO RESULTS SHOWED THAT NANO FLUID THERMAL CONDUCTIVITY REDUCTION CAUSED BY PARTICLE SEDIMENTATION DECREASE WITH INCREASE IN PARTICLE SIZE AND CONCENTRATION.

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