Journal
JOURNAL OF HYDRODYNAMICS
Volume 24, Issue 6, Pages 942-950Publisher
SPRINGER
DOI: 10.1016/S1001-6058(11)60322-3
Keywords
coiled agitated vessel; heat transfer enhancement; Nusselt number; TiO2/water nanofluid
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An attempt is made to investigate heat transfer enhancement using nanofluid in a coiled agitated vessel fitted with propeller agitator. The heat transfer coefficient in coiled agitated vessel for water and TiO2/water nanofluid of 3 different volume concentrations (0.10%, 0.20% and 0.30%) are estimated and compared. The heat transfer coefficient for nanofluid is found to be higher than that for water and also found to increase with increasing volume concentrations. The enhancement in the convective heat transfer using nanofluid is found to be a maximum of 17.59%. Empirical correlations are separately formed for water and TiO2/water nanofluid as well as found to fit the experimental data within +/- 5% for water and within +/- 10% for nanofluid.
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