Authors: Sergey B Rutin Pavel V Skripov
Publish Date: 2016/08/29
Volume: 37, Issue: 10, Pages: 102-
Abstract
Nanofluids are considered as potential working fluids for advanced heatexchange devices This stimulated a growing number of research efforts and publications in this area However the published experimental results draw a rather conflicting picture In the commented paper G Tertsinidou MJ Assael and WA Wakeham critically evaluated the collection of results on the thermal conductivity for seven types of nanofluids It has been proposed that the large scatter of the results is due basically to the lack of precision in setting up the experiment As a result the requirements to both the experimental approach and the thermodynamic description of nanofluids were formulated In the present comment we have proposed some essential additions to these requirements especially with respect to the validity of a transition from measurements in base fluids to measurements in suspensions In addition to the case of the monotonic increase in the heat conduction with increasing nanoparticle concentration as discussed in the commented paper we have also addressed the specific case of nonmonotonic behavior of the heat conduction as a function of nanoparticle content
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