Research on heat transfer characteristics of nanostructure surface made of carbon nano tube on SiC ceramics

Noguchi, Hiroki  

The heat exchanger made by SiC ceramics has expanded the application in high temperature and corrosive condition in chemical plants. The heat transfer enhancement technology by nanostructure surface was applied for pressureless sintering SiC ceramics. Nanostructure surface by carbon nano tubes (CNT) generated by the surface decomposition was manufactured, and its convective heat transfer performance for water was acquired. As a result of comparing with the SiC, heat transfer enhancement of nanostructure surface could not be observed. It is thought to be related that the heat transfer surface changed from hydrophile to hydrophobic by the CNT processing.