Heat transfer enhancement and entropy generation analysis of a tube with perforated conical inserts
Gaurav Srivastava, Anil Kumar Patil, Manoj Kumar
Abstract
The present study examines the flow and thermal characteristics of a tube containing perforated conical inserts by varying the Reynolds number in the range of 4000–20000. The perforated conical insert having (d/D) ratio of 0.3, (p/D) ratio of 2, (x/L) ratio of 0.25, and N = 6 showed the minimum entropy generation. Second law analysis showed that the solid inserts of a lower pitch to diameter ratio are suitable to transfer high energy transfer at lower Reynold’s number, whereas the perforated conical inserts are found to be effective at higher Reynolds numbers. Empirical correlations are developed for solid and perforated conical inserts.
Topics & Concepts
Materials scienceConical surfaceReynolds numberHeat transferHeat transfer enhancementDiameter ratioMechanicsThermodynamicsTube (container)Composite materialTurbulencePhysicsHeat Transfer MechanismsFluid Dynamics and Turbulent FlowsNanofluid Flow and Heat Transfer