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John O | October 2013

What Effect on Heat Pipe Performance Does Using a Copper Nanofluid Concentration Have?


fluid types used in heat pipes vary based on application, from academic research to a high end, data center server.  copper based nanofluids are one of the choices and they seem like an obvious one given copper's excellent thermal conductivity.  however, the filling ratio, copper particle size and concentration all have an effect on the efficiency.

the effect of filling ratio in heat pipe on the thermal performance like thermal efficiency was experimentally studied using copper nanofluid. heat pipes are widely used for the thermal control of electronic device due to this high performance. the nanofluid used in this study was copper nano particles of size 40 nm with a various concentrations of 25 mg/lit, 50 mg/lit, 100 mg/lit and 125 mg/lit. the base working fluid used in this experimental analysis was de-ionized water. an experimental system is set up to measure the temperature distribution of heat pipes along the surface and calculate the thermal efficiency of copper nanofluid under different concentration. concerning heat transport limitations, the copper nanofluid show the advantages over the conventional working fluids. the experimental result  show that the higher efficiency of the heat pipe obtained with a concentration of 100 mg/lit than the other concentration for all orientations.  click here to read the free, full article, in pdf at the open access journal, frontiers in heat pipes on themal fluids central.


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