Nanofluidics is often defined as the study and application of fluid flow in and around nanosized objects. In general, thermal conductivity of solid phase particles are larger than liquids. Hence, by properly dispersing nanoparticles into matrix fluid, the mixtures prevail over normal fluid for its superior heat transfer performance. In this study, comprehensive researching topics and industrial applications regarding to nanofluids are briefly introduced. Then, specifically applications of rianofluids in heat transfer system are demonstrated in more detail. The main objectives of the study are to identify important parameters for microscale liquid flows and nanoparticle suspensions, to find a physically sound way to analyze the new phenomena, and to provide mathematical models to simulate them. Finally, implementing of nanofluids to design a freezing-chucker with an insided U1 turned two-pass channel is experimentally studied. Typical structure of a freezing-chucker includes a top plate, a body with specially designed rib turbulators inside it, and a bottom plate, respectively, and its physical model can be considered as a three-dimensional domain which composed of the top and bottom Cu plates, and the flowing channel for nanofluids. The inlet and outlet of the flow is located in the same side. An experimental IR thermographic method for the evaluation of surface temperature distribution of the top plate is adopted to show the convective heat transfer effects of nanofluids.
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