International Journal of Advanced Innovative Technology in Engineering (IJAITE)

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An Overview On Thermo-Physical Properties of Nanofluids And Its Effect on Heat Transfer

Dr. S. V. BHALERAO, Dr. P. N. SHRIRAO, Prof. S. S. GADDAMWAR

Abstract :

The literature in enhanced heat transfer is growing faster. The enhancement of heating or cooling in an industrial process may create a saving in energy, reduce process time, raise thermal rating and lengthen the working life of equipment. Some processes are even affected qualitatively by the action of enhanced heat transfer. A number of investigations have been performed to gain an understanding of the heat transfer performance for their practical application to heat transfer enhancement. There are several methods to improve the heat transfer efficiency. Some methods are utilization of extended surfaces, application of vibration to the heat transfer surfaces, and usage of micro channels. Heat transfer efficiency can also be improved by increasing the thermal conductivity of the working fluid. In recent years, the nanofluid has emerged as an alternative heat transfer fluid for heat transfer applications showing a significant potential for heat transfer improvement. Nanofluids are this new class of heat transfer fluids and are engineered by suspending nanometer-sized particles in conventional heat transfer fluids. Nanofluids appear to be a very interesting alternative heat transfer fluids for many advanced thermal applications as in Electronics, Power generation, transmission and Renewable energy. The purpose of this review paper is to go through the thermo-physical properties of the nanofluids. This review paper also focused on the nanofluids performance in tube and covered the enhancement in heat transfer by the use of nanofluids in all applications and the effect of concentration, Reynolds number, type of nanofluid, and diameter of nanoparticles and other parameters.

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