Through the use of the salt-leaching pore forming method, a series of sintered nickel capillary wicks with variable porosity and pore characteristics were synthesized. The thermal conductivities of these wicks (both dry and wet) were evaluated by the transient plane source (TPS) method. The factors that affect thermal conductivity were found to be the porosity and the pore size distribution....
The authors propose a fast and novel method for the synthesis of polyaniline nanofibers and their incorporation into DI-water as a nanofluid. The thermal conductivities of the nanofluids are measured from 10 °C to 80 °C by using the transient plane source (TPS) method. The particle loading amount of nanofibers affected the thermal conductivity of the nanofluids. Scanning Electron Microscopy (SEM) was used to characterize the physical properties of the nanofibers....
The main objective of this research project was to create a material with a very low thermal conductivity at high temperatures, for the conservation of energy in high temperature systems. To accomplish this goal, the researchers incorporated carbon nanofibers into the mesoporous network of monolithic aerogels, with up to a 20 wt.% through an accelerated-gelation sol-gel process. The synthesis process also involved the use of supercritical drying of the aerogels to ...
A new composite zeolite/foam aluminum material is synthesized and its suitability for use in an adsorptive refrigeration system is studied. Current automobile air conditioning systems use vapor compression refrigeration systems which have environmentally unfriendly chemicals and use a significant portion of the engine power of the vehicle. The newly proposed composite zeolite/foam aluminum would work by using the engines heat in order to run the air conditioning systems, ...
Nanofluids and nanorefrigerants are relatively new materials used for a variety of purposes. Specifically, nanorefrigerants are investigated in this study and the authors wanted to devise a theoretical model that could be used to predict the thermal conductivity of nanorefrigerants and nanofluids both. By using the TPS technique the researchers were able to obtain experimental data for the thermal conductivities of a series of nanorefrigerants and through the use of ...
