Preparation Techniques for Nanofluids

Mechanical Engineering

Nanofluids belong to new class of fluids with enhanced Thermophysical properties and heat transfer performance. In present days, nano material occupies the major area in engineering field. Nanofluid is an environmental friendly and also provides better efficiency than the fluids using currently. Nanofluid is a colloidal mixture of nano sized particles in a base fluid to enhance the heat transfer characterstics suited for practical applications. This paper presents procedure for preparing a nanofluid which is a suspension consisting of nanophase powders and a base liquid and Mathematiclal expression for the nanofluid properties. The nanofluid shows great potential in enhancing the heat transfer process. One reason is that the suspended ultra-fine particles remarkably increase the thermal conductivity of the nanofuid. The nanofluids are efficiently used in different applications. Nanofluids increase the Absorption of solar enegy will be maximized with change of the size, shape, material and volume fraction of the nanoparticles.

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