In order to investigate the effect of mass fraction and nanoparticle
size on the enhancement of the thermal conductivity. The
thermal conductivity of CueH2O nanofluids with five different
mass fraction (0.01 wt%, 0.02 wt%, 0.04 wt%, 0.1 wt%, 0.2 wt%) and
different nanopaticle size were measured by HotDisk instrument.