Abstract
Nanofluid (NF), a homogeneous dispersal of nanoparticle (NP)s in a carrying fluid, is used in many thermal applications due to its exceptional thermal characteristics. The goal of the current study is to use two-step technique for development of stable aqua alumina NF. The NF's stability is increased by using cetyltrimethylammonium bromide, a cationic surfactant. Magnetic stirring with heating is used to improve nanoparticles dispersion in the base fluid (BF). Following the development of the NF, the synthesised sample is examined utilising several stability evaluation procedures at various time intervals, including 1 day, 8 days, 15 days, and 30 days. Utilising modern equipments such as KD2Pro analyzer and double gap rotating cylinder type viscometer, thermophysical properties as thermal conductivity (knf) and viscosity (μnf) of NF were evaluated. According to experimental findings, enhancement in the volume fraction of NPs was accompanied by an increase in the nanofluid’s thermophysical properties. At the highest volume concentration, the highest augmentation in knf and μnf was found as 8.52% and 76.21%, respectively.
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