![]() A recent development is that nanoparticles can disperse in conventional heat transfer fluids such as water, glycol or oil to produce a new class of high efficiency heat exchange media. This suspended nano particles can change the transport and the thermal properties of the base fluid. Nanoparticles may or may not exhibit size-related properties that differ significantly from those observed in fine particles or bulk materials. Similarly to ultra fine particles, nanoparticles are sized between 1 and 100 nanometers, though the size limitation can be restricted to two dimensions. While ultra fine particles, on the other hand, are sized between 1 and 100 nanometers. It is further classified according to size: In terms of diameter, fine particles cover a range between 1 nanometers, In nano technology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. Keywords: Nano particles,Thermal conductivity, viscosity, specific heat and velocity. The recent advance in materials technology has made it possible to produce nanometer sizes particles that can overcome these problems. ![]() However they have not been of interest for practical applications due to problems such as sedimentation, erosion, and fouling and increased pressure drop of the flow channel. The enhancement of thermal conductivity of conventional fluids by the suspension of solid particles, such a millimeter or micrometer- sized particles has been well known for more than 100 years. Since a solid metal have large thermal conductivity than a base fluid, suspending metallic solid fine particles into the base fluid is expected to improve the thermal conductivity of that fluid. Improving of the thermal conductivity is a key idea to improve the heat transfer characteristics of conventional fluids. The use of solid particles as an additive suspended into the base fluid is a technique for heat transfer enhancement. Various techniques are applied to enhance the heat transfer the low heat transfer performance of these conventional fluids obstructs the performance enhancement and the compactness of heat exchangers. ![]() They play an important role in many industry sectors including power generation, chemical production, air- conditioning transportation and microelectronics. CAPE institute of technology Levengipuram, TamilnaduĢ,3School of Mechanical and Industrial Engineering, Bahirdar University, Bahirdar, EthiopiaĬonventional fluids such as water, ethylene glycol are normally used as heat transfer fluids. Rejikumar,3TeshomeBekeleKotuġDepartment of Mechanical Engineering. Analysis Of Heat Transfer Coefficient Of Nano FluidsġV.
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