• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2016, Volume: 9, Issue: Special Issue 1, Pages: 1-7

Original Article

Heat Transfer Enhancements for a Nano Fluid by Turbulent Flow


The purpose of this work is to study the heat transfer and pressure drop characteristics in tube fitted with helical screw louvered rod addition using water and carbon nanotubes (i.e. CNT) with continuous heat flux in turbulent flow condition. Nano fluids 0.1%, 0.2% & 0.5% with volume fraction were prepared. In the work, the swirling flow was presented by using helical screw louvered rod inserts arrangements (forward) inside the inner test tube through numerous ratio of twist, Y = 1.78, 2.44 and 3.0. The Reynolds number differs from 10,000 to 27,500. The work carried out results showed rise in rate of heat transfer of the helical screw louvered rod inserts creates a strong influence on a tape-induced swirl or vortex motion. The heat transfer goes on increasing with a change in the volume concentration. Subsequently, an observed correlation for the friction factor and Nusselt number onward helical louvered rod inserts were established and fitted with the investigational data.
Keywords: Carbon Nanotube Nano-fluid, Friction Factor, Helical Louvered Rod Inserts, Nusselt Number; Thermal Conductivity, Viscosity


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