Effect of Single-Walled Carbon Nanotube on the Viscosity of Lubricants

Kinematic viscosity of single walled carbon nanotubes (SWCNTs)/ lube oil cuts nanofluids containing 0.01-0.2 wt% single walled carbon nanotube (SWCNTs) was investigated at 25 degrees C-100 degrees C. The nanotube diameter was similar to 2nm and lengths ranging from 10 to 15 mu m. Kinematic viscosity of nanofluids increases with increasing particle weight fraction and decreasing temperature. The viscosity index of oil-based SWCNT nanofluids is increased up to 32.94% at a weight fraction of 0.2%. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of the organizing committee of 2nd International Conference on Advances in Energy Engineering (ICAEE).