Assistant Professor, Department of Aeronautical Engineering Nehru Institute of Technology, Coimbatore.
In the present work attempts were made to investigate the hydrodynamics and heat transfer characteristics of tube-in-tube helical heat exchanger. The steady state simulation was carried out in counter current mode operation with hot fluid in the tube side and cold fluid in the annulus area. A commercial Computational Fluid Dynamics package was used to predict the flow and thermal development in tube-in-tube helical heat exchanger. CFD simulations are carried out in tube in tube helical coils by varying different geometric parameters such as helical tube pitch.