“…This followed by several studies using nano-particles suspension to improve the performance of heat transfer devices such as heat pipes, pulsating heat pipes, grooved surfaces, flat heat pipes etc. (see, Yang et al, 2008;Liu et al, 2007;Naphonet al, 2008;Qu et al, 2010;Do and Jang 2010). Very recently nanofluids have been used in the micro grooved flat heat pipe (Hyang and Jang, 2010).…”