A Review of heat transfer enhancement using Nano fluids with different base fluids

Abstract

Heat transfer enhancement techniques refer to different methods used to increase the rate of heat transfer
without affecting much the overall performance of the system. These techniques are used in manufacturing industries.
Some of application of cooling of electronics, cooling of transformer oil, improving diesel generator efficiency, cooling
of heat exchanging devices based on results available in the literatures, It has been found nano fluids have much higher
and strongly temperature – dependent, thermal conductivity at very low particle concentration than conventional fluids.
So many researchers have shown that the thermal conductivity and the convection heat transfer co-efficient of the fluid
can largely enhance by suspended nano particles. The most of the oxide nanofluids are ineffective as heat transfer liquids
and certain CNT nanofluids are effective.