ANALYSIS OF SHELL AND HELICALLY

Anuj Sharma, Sahil Sharma, Aman Pandit.

Keywords:

Heat exchanger, nanofluid, turbulent flow, heat transfer coefficient, pressure drop, Reynolds number, Friction Factor.

Abstract:

The research aims to improve the heat transfer coefficient within the helical-coil pipe heat exchanger by combining water and titanium dioxide (TiO2) nanoparticles. In this work, the effects of nanofluids with different volumes Concentrations varying from.15 to.75 percent, the mass stream ratio of nanofluids inside the pipe, the mass stream ratios of water flow through the shell pipe, and the inlet temperature inside the tube on the Nusselt number were studied. Tests with and without nanoparticles were conducted under similar conditions. The test rig was constructed in the heat transfer laboratory, the it performed the tests and collected results. The test results show that nanoparticles enhance the heat transfer coefficient within the helically coiled tube significantly. The heat transfer coefficient inside the tube increases as the Reynolds number of the tube flow increases. Furthermore, the experimental findings reveal that when the Reynolds numbers increase, the friction factor of nanoparticle fluxes inside the tube decreases.