The authors present a method for measuring the thermal conductivity and thermal capacity of thin insulating and super-insulating materials. The new method is compared to previously existing methods and elaborates upon why these methods are unacceptable for the measurement of thin insulating materials. The researchers developed a 3D and 1D model in order to aid in the determination of thermal conductivity. The proposed method involved sandwiching a sensor/heater between ...
Two different sets of phase change materials were made by adding either graphene or exfoliated graphite nanoplatelets (xGnP) to paraffin in hot toluene. The thermal and stability properties of these newly synthesized composites were then studied using the TPS method. The addition of xGnP led to a higher thermal conductivity while the addition of graphene led to a higher electrical conductivity. Graphene was found to be better at stabilizing the ...
Expanded graphite (EG)/paraffin composite materials were prepared with the weight % of EG varying from 0 to 10%. It was found that the addition of EG to paraffin greatly improved the thermal conductivity of the material. The melting and freezing points of the PCM were compared to those of the pure paraffin. Also the heat storage/retrieval rates were studied and demonstrated improved properties....
The researchers proposed a method used to measure the thermal conductivity and heat capacity of low thermal conductivity materials with accuracy better than 10%. DSC was also used to determine thermal contact between the sample and the DSC furnace....
Using the TPS method, the thermal conductivities of a variety of metallic hollow sphere structures (MHSS) were measured. The thermal conductivities were also calculated using Misnar's analytical model and compared to the experimental results, with good agreement between the two sets of data....
