ABSTRACT
Because of the improvements observed in terms of their heat transfer properties, nano uids became naturally a potential candidate to replace conventional uids in some applications of heat exchangers. Presently, conventional heat transfer uids such as water, ethylene glycol, or oils are still widely used for heat exchange purposes in the industry or in building applications. An increase in the thermal loads can generally be handled by an increase in the heat exchange surface. However, conventional uids remain penalized by their limited thermal properties, among which is a low thermal conductivity. As a consequence, they are no longer suitable for some modern applications requiring a high level of performance while keeping a reduced size of the thermal system such as for the cooling of microprocessors, micro-electromechanical systems, as well as to obtain fast transient regimes in heating systems. erefore, several research works focusing on convective heat transfer, with nano uids as working uids, have been carried out during the last decade in order to test their potential for applications related to industrial heat exchangers.
