Heat transfer study on concentric tube heat exchanger using TiO2–water based nanofluid

A comprehensive review on heat transfer characteristics of TiO2 nanofluids

“…Using as cooling media is a common application of TiO 2 nanofluids. Khedkar et al [69] investigated cooling performance of water based TiO 2 nanofluids in a concentric tube heat exchanger, the heat-transfer characteristics of TiO 2 -water nanofluids as a coolant in concentric copper tube heat exchanger. They found that TiO 2 nanofluids exhibited higher cooling performance than pure water, and the heat transfer coefficient increased with particle loading.…”

Heat Transfer Applications of TiO2 Nanofluids

“…Khedkar et al [25] study TiO 2 /water nanofluid heat transfer characteristics in concentric heat exchanger. Nanofluid with the highest concentration has the highest overall heat transfer coefficient.…”

“…Nanofluid with the highest concentration has the highest overall heat transfer coefficient. Flow diagram of apparatus used in experimentation [25] is shown in Figure 2.…”

Review of enhancement in heat transfer rate using nanofluids of helically coiled tube heat exchanger

“…It is observed that at the particle volume concentration of 2 percent the overall heat transfer coefficient is 700.242 W/m 2 K and for the water it is 399.15 W/m 2 K for a mass flow rate of 0.0125 l/s so the enhancement ratio of the overall heat transfer coefficient is 1.754, this means the amount of the overall heat transfer coefficient of the nanofluid is 57 percent greater than that of distilled water. Khedkar et al [10] conducted an experimental and numerical study on a Heat transfer study on concentric tube heat exchanger using TiO 2 -water based nanofluid. In this work, experiments were carried out for a wide range of Reynolds number and nanoparticle volume concentrations.…”