In this present study, numerical modelling and experimental verification of heat transfer enhancement using
compound technique of a concentric tube heat exchanger is done. Laminar flow is considered for both the numerical and
experimental study. Among the active and passive technique, passive techniques were employed with surface roughened and
insertion of twisted tape. A Computational Fluid Dynamics approach was used for numerical analysis which was further verified
experimentally. The geometry of the concentric tube heat exchanger was designed in SolidWorks® and the discretization was
carried out in ICEM CFD 14.5. The computational simulation was carried out by ANSYS CFX 14.5 solver. The experimental
verification was conducted in the same Reynold's Number range used in the numerical analysis, of 500-5000. The heat transfer
enhancement was calculated through Performance Evaluation Criteria (PEC) which was found to be 9.67 and 7.89 for CFD
analysis and Experiment respectively.
