Many limitations exist within the development of energy efficient heat transfer fluids; however, low thermal conductivity of these fluids is the main issue. In order to improve the thermal conductivity of these heat transfer fluids, researchers in this study performed strenuous research and ultimately created a new and improved fluid. In this newly designed material, nanoparticles and carbon-nanotubes (CNTs) were suspended within the fluid, aiming to increase the fluids thermal ...
Author(s): F. D. S. Marquis, L. P. F. Chibante
Researchers have determined the potential of increasing the thermal conductivity of insulating polymers by adding conductive fillers. One common application this may be used for, is fuel cell bipolar plates. In this article, researchers tested varying amounts of three different carbon fillers (black carbon, synthetic graphite particles, and carbon nanotubes), by adding them to polypropylene. Both single fillers and combination fillers were studied for their potential effects on the thermal ...
Author(s): B. A. Johnson, C. J. Ciarkowski, J. A. King, M. D. Via
Thermal Interface Materials (TIMs) are used in the field of electronics, to reduce the thermal contact resistance between the heat sink and heat source, to improve heat dissipation within the electronic device. In this experiment, researchers created a TIM by synthesizing Carbon Nano-Tubes (CNTs) on both sides of a thin copper foil. To test the thermal conductivity of the foil with this enhancement, the transient plane source method was employed. ...
Author(s): H. Wang, J. Y. Feng, K. M. Ng, X. J. Hu
This article evaluates the thermal conductivity of heat transfer nanofluids containing nickel coated single wall carbon nanotubes. The results concluded that with the introduction of a magnetic field, the thermal conductivity of the heat transfer nanofluid is improved. Researchers attribute this improved thermal conductivity to the ability of the nickel coated nanotubes to form aligned chains under the force of a magnetic field, allowing for better contact and ultimately a ...
Author(s): B. Wright, D. Thomas, E. Duke, H. Hong, J. Puszynski, L. Groven, S. Jin, X. Ye
The researchers in this paper were the first to report that the thermal conductivity of the heat transfer nanofluids has the ability to be enhanced by an external magnetic field. This is possible due to carbon nanotubes and magnetic-field-sensitive nanoparticles of Fe2O3. It was discovered that the Fe2O3 nanoparticles form chains when exposed to magnetic fields, which allows the nanotubes to connect. As the nanotubes connect, the thermal ...
Author(s): B. Wright, H. Hong, J. Wensel, S. Jin, W. Roy, X. Rong Ye
