Based on these thermal conductivity values, we also estimated the grain boundary conductance, 14.43±1.21×1010Wm−2K−1, and the thermal conductivity for single crystal tBLG, 1510±103Wm−1K−1.
Based on calculated thermal conductivity and dielectric constant of HGM, the experimental trends of thermal conductivity and dielectric constant at 1 MHz of the composites are analyzed by using different models, including typical models for particles-filled composites and special models developed for hollow microsphere filled composites.
Variables used to set up the model have been adapted from Danis et al. (2012), who have produced thermal models of the Sydney Basin, based on constant thermal conductivity values.
The results presented in Figs. 4, 5, 6, 7, 8, 9, 10, 11, 12 are based on the thermal conductivity model predicted by the Maxwell [46] and in rest of the figures we have considered the effective thermal conductivity model given by Yu and Choi [47]. Figure 4 shows variation of the film thickness H with time t for different values of the nanoparticle volume fraction (phi).
Third, the temperature field of the integrated valve is analyzed by CFX based on the thermal conductivity.
Based on the thermal conductivity measured to be 0.23 W m−1 K−1, the maximum ZT value was achieved as high as 0.17.
Consequently, a Nusselt number, based on the thermal conductivity of the gas, is easy to define and for U⩽Umf (i.e. a packed bed), Nu is given byNu="2+0.90Re0.62(ds/db)0.2for air flowing through the bed.
Here, we use an effective medium approach to estimate the R K in CNT/Cu composites based on the thermal conductivity measurements.
