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): Dongsheng Zhu, Hua Li, Jinwei Gao, Nan Wang, Xianju Wang, Xin-Fang Li, Xinfang Li
As technology advances, so must our methods. One of the most important aspects when working with physical instruments is to maintain heat flow in the desired direction. The transient plane source is a single unit that produces heat while doubling as a temperature sensor, so it is an excellent way to control and monitor the movement of heat without loss to the environment. The sensors for the TPS model are ...
Author(s): Bashir Suleiman, Lars BC6rjesson
In this study, researchers set out to test the performance of biocomposites reinforced with regenerated cellulose fibers and lactic acid thermoset bioresin. A difference in treatments was conducted as the cellulose fibers were surface treated with either silane or alkali. The main goal of this research was to improve the overall strength of the interactions at the fiber-matrix interface. Multiple strength tests, such as the tensile, flexural and impact strength ...
Author(s): Fatimat Bakare, Mikael Skrifvars, Rene Herrmann, Sunil Kumar Ramamoorthy
The purpose of this study was to improve the wettability of silicon carbide (SiC) nanowires, in order for them to be used as thermoconductive fluids. Multiple experiments were conducted by exposing the SiC nanowires to hydrofluoric acid, tetraethyl orthosillicate, polyvinylpyrolidone and sodium hydroxide. Various tests, including x-ray diffraction, Fourier transformation-infrared, x-ray photoelectron spectroscopy, thermogravimetric analysis, scanning electron microscopy and transmission electron microscopy, were performed on these various materials to identify ...
Author(s): Famin Zhai, Junhong Chen, Kuo-Chih Chou, Meng Liu, Xinmei Hou
This research highlights the capabilities of transient measurements and sensors to estimate thermal conductivities of samples with large voids/variations in their compositions. Because of the lack of a physical model to predict thermal conductivity vs depth information of inhomogenous materials, researchers have utilized existing models to create an advanced iteration scheme, to determine depth position data. Although the authors have discovered a promising and reproducible means to determine the ...
Author(s): Andrey Sizov, Arne RosC)n, Daniel Cederkrantz, L. Jacobson, L. Salmi
