Thermal Convection Using Carbon Nanotube Forest Device

The research of carbon nanotubes (CNTs) has been remarkable since it was discovered. The excellent promising mechanical properties of CNTs are the most interesting reasons to research. So does the motivation of this thesis. This thesis discusses the growth procedure of the iron-filled CNTs which is synthesized on aluminum substrate. After synthesizing the different heights and structures of iron-filled CNTs, the effect of the natural convection for iron-filled CNTs by experiment processing are also be mentioned. In the same environment, it compares the ability of heat dissipation efficiency which caused by natural convection between the sample of iron-filled CNTs and the other without. After that, there is an analysis of heat dissipation efficiency for the iron-filled CNTs in different heights and structures. In this research, the material surface with iron-filled CNTs improves heat convection efficiency from 30% to 50%, which is proportional to the temperature difference between the specimen and environment. The effect on the higher iron-filled CNTs is similar, and even the one in fin-like still not able to perform better heat dissipation efficiency. Therefore, we can conclude that the gain of the convection by iron-filled CNTs is due to the outstanding axial thermal conductivity.