Abstract

A new experimental setup has been designed for conducting experiments in a copper round pipe heat exchanger with inner diameter di=14.5mm and outer diameter do=16mm and length L = 1720 mm . By using two copper oxide nano concentrations of 0.1% and 0.3% with water as based fluid, the heat transfer rates have been obtained with helical twisted insert H/D=5 in turbulent flow condition. Reynolds number and friction factor with pressure gradient have been evaluated. The heat transfer rates of 0.1% conc. Nano-fluid with insert was found to be 13.77% more when compared to water.

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