Heat transfer of a single wall carbon nanotube

[摘要] A non equilibrium molecular dynamics simulation was used to calculate thermal conductivity of a single-walled carbon nanotube (SWNT). Effective thermal conductivity was calculated for the same SWNT surrounded by nitrogen at 250K and 290K at 8 bar. Heat flux was created by implementing Nose-Hoover thermostats at the ends of the SWNT. Using Fourier;;s Law thermal conductivity was calculated. For both simulations thermal conductivity increased when the temperature difference between the two ends was small. As the temperature difference increased the thermal conductivity reached a constant value of around 160 W/mK in a vacuum with end temperatures close to 330K or 310 K.

[发布机构] Rice University