Improvement of Heat Transfer Coefficients in a Shell and Helical Tube Heat Exchanger Using Water/Al2o3 Nanofluid
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International Research Journal of Engineering and Technology (IRJET)
Monday, June 1, 2015

Improving heat transfer in helical tube heat exchanger is studied, experimented and analyzed by many research peoples, it’s because the fluid passing through the helical tube offers certain better advantages then straight tubes. in this paper we are concentrating on improving shell side heat transfer coefficients and net heat transfer in given experimented model, without much pressure loss is our main aim of project. So we are referring some journals for correlations of AL2O3 nanofluids properties and designing the model in ANSYS WORKBENCH 15 then it is meshed and solved in STARCCM+ solver for various concentrations of nanofluids. The hot fluid passes through the helical coil and cold fluid passes through the shell in a counter flow manner, water is used as a base fluid in both cases. The copper is chosen as a material of tube, where as the physics monitoring equations like mass momentum and energy are solved using turbulence of k-e two equation models. The results of temperatures are validated for experimented values that are referred and heat transfer values are plotted.

Author Name: 
Kiran Voonna
T.K. Tharakeshwar
Author Company: 
Siddaganga Institute of Technology Tumkur