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Recommended Papers for: Xin-Fang Li

Total Papers Found: 6

Dispersion behavior and thermal conductivity characteristics of of Al2O3–H2O nanofluids

Nanofluids are relatively new materials that are composed of liquids containing solid nanoparticles ranging from 1-100 nm. This study examined the thermal conductivity of Al2O3 (aluminum oxide)-H2O nanofluids in water under multiple pH and sodium dodecylbenzenesulfonate (SDBS) conditions. A transient plane source (TPS) was used to measure the thermal conductivities of the samples. It was found that when the pH of the nanofluid reached approximately 8.0, the solution ...

Author(s): , , , , , ,

Effect of pH and chemical surfactant on thermal conductivity enhancement of Cu-H2O nanofluids 

This study investigates the effect changing the PH of a copper nanofluid and sodium dodecylbenzenesulfonate (SDBS) surfactant concentration has on the thermal conductivity of the nanofluid. The thermal conductivity was determined through the Hot Disk Transient Plane (TPS) method. As the PH is increased the thermal conductivity also increases because higher PH means more surface charges which increase conductivity.  As the SDBS concentration is increased the thermal conductivity slightly increases ...

Author(s): , , , , , ,

Thermal Conductivity Enhancement for Aqueous Alumina Nano-Suspensions in the Presence of Surfactant

A series of Al2O3-water nanofluids were synthesized and their thermal conductivities were evaluated under different pH values and concentrations of surfactant (SDBS) using the Thermal Constants Analyzer. All the properties studied were found to have a strong effect on the measured thermal conductivity. By using the procedure listed in the report, the thermal conductivity of Al2O3-water nanofluids can be increased by 10% with the use of only 0.0015 ...

Author(s): , , , , ,

Study on dispersion behavior and thermal conductivity of Cu-H2O nanofluids

The addition of Cu nanoparticles to water was studied at different pH values and different dispersant concentrations by the measurement of zeta potential and absorbency. Thermal conductivity was measured. It was found that the ideal properties of the nanofluid were obtained at pH 9.5....

Author(s): , , , , ,

Influence of pH on Nanofluids- Viscosity and Thermal Conductivity

This article outlines the effect of adding Al2O3 and Cu nanoparticles to water and measuring the thermal conductivities and viscosities of the mixtures. The effect of pH was taken into account and it was found that there are optimal pH values for each of the nanoparticle mixtures that give the highest thermal conductivities and lowest viscosities. Research shows that thermal conductivity and viscosity are closely related to each other. ...

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