Effects of Preparation Parameters on TiO2/water Nanofluid Stability
Main Article Content
Abstract
Nanofluid is of great interest as innovative medium for heat transfer unit due to high thermal conductivity of particles suspended in base fluid. Stability of nanofluid is a critical barrier of its versatile applications. This research aims at the preparation of high stability TiO2/water nanofluid. The variation of the amount of TiO2 particle containing in water and concentration of dispersant (CTAB; Cetyl Trimethyl Ammonium Bromide) were investigated. Moreover, the effect of temperature change during the operation was monitored. The results showed that nanofluid prepared at volumetric ratio of TiO2/water up to 6.0% (v/v) without CTAB has the good stability. However, in order to get the higher thermal conductivity, nanofluid containing TiO2/water 9.0% (v/v) with CTAB 1.92x10-4 mol/L at 30˚C exhibited the highest stability. Nevertheless, the stability decreased with increasing of temperature.
Article Details
Copyright @2021 Engineering Transactions
Faculty of Engineering and Technology
Mahanakorn University of Technology
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